Robert R. Reisz has published some 157 papers over 40 years, mostly on Permo-Carboniferous stegocephalians (sensu Laurin; “tetrapods” in traditional usage), especially amniotes, but also on other taxa and periods, from Devonian dipnoans to Neogene primates. He has been a leader in the study of early amniote phylogeny, publishing one of the first cladograms of these taxa in 1980. His work has proposed new hypotheses about the origin of turtles, extant amphibians and therapsids. His classical work on Paleozoic synapsids provided the basis for currently accepted taxonomies. He has also tackled several major evolutionary innovations, such as the origin of herbivory among tetrapods and the use of venom in mammals. Finally, he has proposed new calibration constraints for molecular dating. He has trained a number of postdoctoral fellows, doctoral and masters’ students.
Robert R. Reisz a publié au moins 157 articles dans les 40 dernières années, surtout sur les stégocéphales permo-carbonifères et spécialement sur les amniotes, mais il a également abordé d’autres taxons et périodes, des dipneustes dévoniens aux primates néogènes. Il a été un pionnier de l’étude de la phylogénie des amniotes et a publié un des premiers cladogrammes des amniotes paléozoïques dès 1980. Ses travaux ont proposé de nouvelles hypothèses sur l’origine des tortues, des amphibiens actuels et des thérapsidés. Ses travaux classiques sur les synapsidés paléozoïques sont à la base des taxonomies présentement acceptées. Il a également abordé plusieurs innovations évolutives, telles que l’apparition de l’herbivorie chez les tétrapodes et l’application du venin chez les mammifères. Finalement, il a proposé de nouvelles contraintes de calibrations pour les datations moléculaires. Il a formé nombre de post-doctorants, thésards et étudiants de niveau maîtrise.
Paleontology, Vertebrates, Phylogenetics, Tetrapods, Amniotes, Paleozoic, MorphologyPaléontologie, Vertébrés, Phylogénétique, Tétrapodes, Amniotes, Paléozoïque, MorphologiepresentedWritten on invitation of the Editorial BoardChildhood and studies
Robert Rafael Reisz was born on August 27, 1947 in Oradea, Transylvania (Romania), where he spent his childhood. As a teenager he moved with his parents to Montreal, where he subsequently obtained his BSc (1969) in zoology and his MSc (1971) and PhD (1975) in biology at McGill University. He enjoyed Robert L. Carroll's lectures on paleontology for undergraduates, prompting him to pursue his graduate studies in Carroll's lab. His master's thesis was an analysis of the earliest known synapsids from the Upper Carboniferous of Nova Scotia (Canada) – Protoclepsydrops from Joggins and the stratigraphically slightly younger Archaeothyris and Echinerpeton from Florence (Reisz, 1972). His doctoral thesis was a detailed anatomical study of Petrolacosaurus kansensis, which is still the oldest known (Late Carboniferous) diapsid, and which was published both as a short report (Reisz, 1977) and a monograph (Reisz, 1981). These theses were the prelude to a long scientific career dedicated largely to the study of Permo-Carboniferous amniotes and, to a lesser extent, of other Paleozoic limbed vertebrates. After defending his doctoral dissertation, Robert briefly taught as a visiting lecturer at the University of California at Los Angeles (1974–1975) before accepting a faculty appointment in the zoology department of the University of Toronto at Mississauga, where he still remains as active as ever, even during a demanding term as chair of the department (2005–2012).
Core research interests
The first half of Robert's scientific career was almost entirely devoted to research on Paleozoic tetrapods. He established his reputation largely on his work on Permo-Carboniferous synapsids, which he still fondly refers to by their traditional designation “pelycosaurs”, and about which he has published many papers and two influential monographic reviews (Reisz, 1980 and Reisz, 1986). These papers laid the foundation for the now-established phylogeny of Permo-Carboniferous synapsids, which differs substantially from the classic view of Romer and Price (1940). In the latter, the Order Pelycosauria was divided into three suborders–Ophiacodontia, Sphenacodontia, and Edaphosauria. Ophiacodontia included families Ophiacodontidae, which was thought to include amphibious, possibly piscivorous forms (Romer and Price, 1940: 172–173), and Eothyrididae. It was explicitly recognized as a provisional group and has not stood the test of subsequent phylogenetic analyses. Sphenacodontia included the presumably more terrestrial carnivorous varanopids and sphenacodontids. Edaphosauria included the probably herbivorous forms, comprising Edaphosauridae and Caseidae. Reisz (1986) showed that Edaphosauridae was actually more closely related to Sphenacodontidae, and that Ophiacodontidae, Varanopidae, and Caseasauria (a taxon comprising Eothyrididae and Caseidae) are successively more remote sister-taxa of that clade. Thus, herbivory evolved at least twice in Permo-Carboniferous synapsids, and ophiacodontids are no longer considered the ancestral stock of synapsids, even though some authors still held on to this idea well into the 1980s (e.g., Carroll, 1988: fig. 17-1). Robert also showed that the enigmatic synapsid Tetraceratops, formerly considered an eothyridid, is probably the oldest known and basalmost therapsid (Laurin and Reisz, 1996).
Robert's work has always emphasized careful, well-illustrated anatomical study (e.g. Reisz et al., 1982). Indeed, one of the first things that students to his lab learn, with precious help from Diane Scott (Robert's remarkably skilled lab technician), is how to recognize, prepare, and illustrate bones properly. However, Robert did not merely describe a fascinating Paleozoic bestiary over the years. He has long been interested in elucidating their phylogeny, both at a low taxonomic level (e.g., Reisz et al., 1992) and a high taxonomic level (e.g., Laurin and Reisz, 1995).
In addition to working on early amniotes, Robert studied other Paleozoic limbed vertebrates, such as temnospondyls, often together with his long-time research collaborator David S. Berman from the Carnegie Museum of Natural History (e.g. Berman and Reisz, 1980), but also with younger scientists, especially his students and postdocs (e.g. Anderson et al., 2008). Robert has also studied seymouriamorphs (Berman et al., 1987 and Sullivan and Reisz, 1999), amphibians (Anderson and Reisz, 2003 and Reisz and Modesto, 1996) and stem-amniotes (e.g. Laurin and Reisz, 1999; Reisz and Sutherland, 2001; Kissel and Reisz, 2004).
Additional research topics
During the second half of his career, Robert has expanded his original research program by also tackling a remarkable diversity of other vertebrate taxa, which attracted his ever-curious mind. He has worked on paleobiological issues concerning Paleozoic dipnoans (e.g. Krupina and Reisz, 1999), sphenodontians (Sues and Reisz, 1995), dinosaurs (e.g. Reisz et al., 2012 and Reisz et al., 2005), anomodonts (Rybczynski and Reisz, 2001), and mammals (Folinsbee et al., 2007), to name but a few. In these papers, Robert presented important new data and interpretations, such as the oldest known dinosaurian nesting site, pertaining to the Early Jurassic sauropodomorph Massospondylus from the Upper Elliot Formation of South Africa (Reisz et al., 2012). The latter study presented evidence of nesting site fidelity, also the oldest such record in dinosaurs to date, and suggested that some form of limited parental care was primitively present in dinosaurs. Robert also discovered evidence that the basal anomodont Suminia getmanovi, from the Upper Permian from Kotelnich (Russia) is the oldest (and only Paleozoic) vertebrate with unequivocal cranial and dental specializations (such as defined dental wear facets) suggesting a high-fiber plant diet (Rybczynski and Reisz, 2001). He also showed that the characteristic dipnoan dental growth pattern has remained fundamentally unchanged for at least 360 million years (Ma). Indeed, the Late Devonian dipnoan Andreyevichthys epitomus from central Russia developed dental plates on the dentary at the hatchling stage, but subsequently lost both the dentary and its dental plate in later growth stages, much like its extant relative Neoceratodus forsteri (Reisz and Smith, 2001). In both taxa, the prearticular dental plates (like the palatal dental plates) grow by the addition of new teeth labially, which fuse with the dental plate, contrasting sharply with the lingual tooth addition sequence prevalent among gnathostomes.
Analytical methods and achievements
Unlike many of his peers, Robert recognized the value of parsimony as a criterion for establishing phylogeny early in his career and adopted it as a key element in his research program. He published a cladogram generated by Hennigian argumentation in his first review of basal synapsid evolution (Reisz, 1980: fig. 17) and his first computer-assisted parsimony analysis based on a data matrix in 1992 (Reisz et al., 1992). More recently, Robert has added other research methods. For instance, he published the first study of Permo-Carboniferous tetrapods using Bayesian phylogenetic analysis, in a review of the interrelationships of early eureptiles (Müller and Reisz, 2006), and an evolutionary study of genome size in early tetrapods (Organ et al., 2011). Robert works mostly with morphological data, but has occasionally drawn on histological information to study, among other structures, the tooth plates of the Early Devonian dipnoan Ichnomylax (Reisz et al., 2004).
Robert's scientific achievements are too numerous and varied to review here comprehensively, but a few examples will illustrate their impact. He has published influential papers tackling the origin of many major vertebrate taxa, such as turtles (Reisz and Laurin, 1991 and Rieppel and Reisz, 1999), therapsids (Laurin and Reisz, 1996), and lissamphibians (Anderson et al., 2008 and Laurin and Reisz, 1997). Over the years, his always open mind has led him to explore and support successively sometimes mutually incompatible hypotheses. For instance, he has suggested that turtles were deeply nested within parareptiles (Laurin and Reisz, 1995 and Reisz and Laurin, 1991) and that they were lepidosauromorph diapsids (Rieppel and Reisz, 1999). In another instance, he has suggested that extant amphibians were monophyletic and nested within lepospondyls (Laurin and Reisz, 1997 and Laurin and Reisz, 1999) and that they were polyphyletic and derived from both lepospondyls and temnospondyls (Anderson et al., 2008). Robert has published several monographs providing detailed anatomical data on Paleozoic tetrapods (e.g. Reisz, 1977) and morphological studies of various skeletal elements (e.g. Campione and Reisz, 2011). His papers document several major evolutionary innovations in tetrapods, such as the appearance of the dipnoan tooth plates (Reisz and Smith, 2001), origin of the amniotic egg (Laurin and Reisz, 1997), development of bipedality in reptiles (Berman et al., 2000), acquisition of herbivory in amniotes (Reisz and Sues, 2000a, Rybczynski and Reisz, 2001 and Sues and Reisz, 1998), and dental features possibly connected to venom use in mammals (Folinsbee et al., 2007). Finally, he has worked on reproductive biology and ontogeny of Paleozoic and Early Mesozoic tetrapods (e.g. Laurin and Reisz, 1997, Reisz et al., 2012 and Reisz et al., 2005). Without deliberately seeking controversy, he has not hesitated to tackle challenging problems when he was in a position to offer a robust alternative interpretation. One such problem concerned the elongated dorsal scales in the enigmatic Middle or Late Triassic diapsid Longisquama that had been interpreted as the precursors of avian feathers. He pointed out that these appendages were unlikely to be homologous with bird feathers based on their detailed structure (Reisz and Sues, 2000b).
He has also tackled the timely problem of how to use the fossil record to date the Tree of Life and especially the diversification of amniotes (e.g. Müller and Reisz, 2005 and Reisz and Müller, 2004). He has argued that the frequently used appearance datum of Amniota, typically 310 or, more appropriately, 315 Ma, is poorly constrained because terrestrial environments where we could expect to find the closest relatives of amniotes have a poor fossil record in the Carboniferous. Consequently, we know very few stem-amniotes, and those that we know postdate the origin of Amniota. Thus, the age of Amniota is poorly constrained by the fossil record, a conclusion also reached by other recent studies (e.g. Marjanović and Laurin, 2007) that conclude that the origin of Amniota can be constrained only to the relatively long interval of 310 to 345 Ma. Because of this, Reisz and Müller (2004) proposed a better-constrained event to be used to calibrate molecular trees, namely the divergence between Lepidosauromorpha and Archosauromorpha, which they dated in the 252 to 257 Ma range. Müller and Reisz (2005) expanded upon this theme by proposing three other well-constrained divergences for molecular dating studies, namely the cladogeneses between dipnomorphs and tetrapodomorphs (419–408 Ma), between Pseudosuchia (pan-Crocodylia) and Ornithodira (pan-Aves) (251–243 Ma), and between Crocodylinae and Caimaninae (71–66 Ma).
To date, Robert's research efforts have generated some 157 scientific papers (appended list of publications) and at least 92 presentations at scientific meetings, most of which resulted in published abstracts. This impressive output has been cited 3020 times, giving him an h-index of 30 (see his Google Scholar profile at http://scholar.google.com/citations?user=S-32ORcAAAAJ&hl=en, consulted on 27-7-2012), which is an impressive bibliometric score for any vertebrate paleontologist.
Students and postdoctoral fellows
Robert has trained many students and postdoctoral fellows, several of whom remain active in the field, and a few have become distinguished researchers in their own right. His postdoctoral fellows include (in chronological order) Malcolm J. Heaton (deceased), Stephen J. Godfrey (Calvert Marine Museum, Solomons, Maryland), Jason S. Anderson (U. of Calgary), Johannes Müller (Museum für Naturkunde, Humboldt-Universität, Berlin), and Nadia B. Fröbisch (Museum für Naturkunde, Humboldt-Universität, Berlin). His former doctoral students include (Fig. 1 and Fig. 2) (in chronological order of year of thesis defense and with current affiliation in parentheses), David W. Dilkes (1992; U. of Wisconsin at Oshkosh), one of us (M. L., 1994; CNRS, Paris), Sean P. Modesto (1996; Cape Breton University, Sydney, Nova Scotia), Michael deBraga (2001; now a high school teacher in Toronto), David C. Evans (2007; Royal Ontario Museum, Toronto), Kaila E. Folinsbee (2008; Iowa State University, Ames), Jörg Fröbisch (2008; Museum für Naturkunde, Humboldt-Universität, Berlin), and Richard A. Kissel (2010; Paleontological Research Institution, Ithaca, NY). Current doctoral students in Robert's lab include Kirstin S. Brink, Caleb M. Brown, Jessica R. Hawthorn, Aaron R. H. LeBlanc, and Mark J. McDougall. Masters’ students supervised by Robert (except for those who subsequently pursued a doctorate in the same lab) include Robert W. Hook (1982; now a consulting geologist in Austin, TX), Heather Wilson (1989; no longer active in the field), Jeffrey Dodick (1990; Hebrew University, Jerusalem), Catherine De Almeida (1995; no longer active in the field), Natalia Rybczynski (1996; Canadian Museum of Nature, Ottawa), Brian Moore (1999; U. of California, Berkeley), Corwin M. Sullivan (2000; Institute of Vertebrate Paleontology and Paleoanthropology, Chinese Academy of Sciences, Beijing), Linda A. Tsuji (2005; U. of Washington, Seattle), Hillary C. Maddin (2006; Harvard U.), Nicolás E. Campione (2008, U. of Toronto), David M. Mazierski (2008, U. of Toronto at Mississauga), and Brendan Polley (2009, now a science teacher in Toronto). The taxa and periods covered by these students and postdocs and range from those close to Robert's core interests, such as Permo-Carboniferous basal synapsids (Brink, De Almeida, Hawthorn, Mazierski, Maddin), procolophonoids (deBraga), other parareptiles (McDougall, Müller, Tsuji), mesosaurs (Modesto), captorhinids (Dodick, Heaton), diadectomorphs (Kissel), seymouriamorphs (Laurin), dissorophoids (Anderson, N. Fröbisch, Polley) and colosteids (Hook), to some a little more afield, such as dicynodonts and their relatives (J. Fröbisch, Rybczynski, Sullivan), and farther afield still, hadrosaurine dinosaurs (Campione, Dilkes), ceratopsians (Brown), and Neogene primates (Folinsbee). In addition to graduate students and postdoctoral fellows, Robert has also mentored many undergraduate students. He is an exacting supervisor, holding his students to his own high standards, but he always takes a kindly interest in both their personal welfare and their career advancement.
Robert enjoys fieldwork and has prospected two classical Carboniferous localities of Nova Scotia, Joggins and Florence (1970–1973) as well as numerous Paleozoic localities in the American Southwest and adjoining regions such as Garnett, Kansas (1970–1973, 1980–1985), Rio Arriba County, New Mexico (1986–1994), Texas, and Utah. On several of these field trips, he was accompanied by his students and postdocs, and, in New Mexico, he often worked with David S. Berman and Stuart S. Sumida. He also explored classic Permian localities in European Russia in collaboration with colleagues from the Paleontological Institute of the Russian Academy of Sciences and from the Kotelnich Museum (1995–2001). In 2004, he collected hadrosaurs in Dinosaur Provincial Park (Alberta, Canada) with David Evans. Robert also undertook paleontological reconnaissance in the Karoo Basin of South Africa in collaboration with colleagues from the Bernard Price Institute for Palaeontological Research (University of the Witwatersrand) in Johannesburg (2003–2010). Most recently, he has embarked on fieldwork in an Early Jurassic dinosaurian bonebed in the Lufeng Basin of Yunnan, China (since 2009). In addition, Robert has been a frequent visitor to many paleontological collections, such as those in London, Paris, New York, Chicago, Norman (Oklahoma), Washington, DC, Moscow, Johannesburg, Cape Town, Berlin, and Beijing, to gain first-hand data for his research. He has an uncanny ability to recognize the scientific potential of material that others have considered unpromising and has found many an important fossil in existing collections (Fig. 3).
Given all these accomplishments, it is no surprise that Robert has received many honors and awards. In recognition of his scientific achievements he was elected Fellow of the Royal Society of Canada (2009) and Fellow of the American Association for the Advancement of Science (2007) and was made an Honorary Member of the Society of Vertebrate Paleontology (2011). He has received a Bass Fellowship from the Field Museum (1998–2000), a Visiting Wilson Fellowship from King's College (University of London), and, most recently, the Humboldt Award for Excellence in Research and Teaching. Robert is a Research Associate at the Royal Ontario Museum, Toronto (since 1975), the Carnegie Museum of Natural History, Pittsburgh (since 1980), the Field Museum, Chicago (since 1998), and the Oklahoma Museum of Natural History (since 2005), and was appointed Honourary Research Fellow at the Bernard Price Institute for Palaeontological Research (since 2009). He was Senior Visiting Scientist at the Paleontological Institute of the Russian Academy of Science, Moscow (1989–2003) and Invited Professor at the Muséum National d’Histoire Naturelle, Paris (2000–2003). He is also a Fellow of the Linnean Society of London and the Royal Canadian Institute. Last but not least, Robert has served with distinction as Senior Editor of the Journal of Vertebrate Paleontology (2006–2010) and as editor for vertebrate paleontology for the leading German scientific monthly Naturwissenschaften (since 2008).
Conclusion
Robert is truly a “Renaissance paleontologist”, having made fundamental contributions to many areas of vertebrate paleontology, both through his scientific publications and by training students, postdoctoral fellows and preparators. His energy and enthusiasm remain undiminished, and we may look forward to many additional achievements on both fronts. Robert's outstanding legacy is certainly worthy of his distinguished academic genealogy, which can be traced back to Edward Drinker Cope and (in chronological order) includes Henry Fairfield Osborn, William King Gregory, Alfred Sherwood Romer, and Robert L. Carroll.
Acknowledgements
We thank Diane Scott for sending us the pictures that are reproduced here with her permission as Fig. 1 and Fig. 3 and Nadia Fröbisch for providing the photograph reproduced here as Fig. 2. David Dilkes and especially Sean Modesto provided careful reviews of a draft of the manuscript.
Scientific Publications by Robert R. Reisz.
Reisz, R.R., 1972. Pelycosaurian reptiles from the Middle Pennsylvanian of North America. Bull. Mus. Comp. Zool. Harv. Univ. 144, 27–62.
Reisz, R.R., 1975. Pennsylvanian pelycosaurs from Linton, Ohio and Nyrany, Czechoslovakia. J. Paleont. 49, 522–527.
Reisz, R.R., 1977. Petrolacosaurus, the oldest known diapsid reptile. Science 196, 1091–1093.
Berman, D.S, Reisz, R.R., 1980. A new species of Trimerorhachis (Amphibia, Temnospondyli) from the Lower Permian Abo Formation of New Mexico, with discussion of Permian faunal distributions in that state. Ann. Carnegie Mus. 49, 455–485.
Heaton, M.J., Reisz, R.R., 1980. A skeletal reconstruction of the Early Permian captorhinid reptile Eocaptorhinus laticeps (Williston). J. Paleont. 54, 136–143.
Reisz, R.R., 1980a. The Pelycosauria: a review of phylogenetic relationships. In: Panchen, A.L. (Ed.), The Terrestrial Environment and the Origin of Land Vertebrates. Academic Press, London, pp. 553–592.
Reisz, R.R., 1980b. A protorothyridid captorhinomorph reptile from the Lower Permian of Oklahoma. R. Ont. Mus. Life Sci. Contrib. 121, 1–16.
Berman, D.S, Reisz, R.R., Fracasso, M.A., 1981. Skull of the Lower Permian dissorophid amphibian Platyhystrix rugosus. Ann. Carnegie Mus. 50, 391–416.
Langston, W., Jr., Reisz, R.R., 1981. Aerosaurus wellesi, new species, a varanopseid mammal-like reptile (Synapsida: Pelycosauria) from the Lower Permian of New Mexico. J. Vertebr. Paleontol. 1, 73–96.
Reisz, R.R., 1981. A diapsid reptile from the Pennsylvanian of Kansas. Univ. Kans. Publs. Mus. Nat. Hist. 7, 1–74.
Berman, D.S, Reisz, R.R., 1982. Restudy of Mycterosaurus longiceps (Reptilia, Pelycosauria) from the Lower Permian of Texas. Ann. Carnegie Mus. 51, 423–453.
Reisz, R.R., Heaton, M.J., 1982. Bayloria morei Olson 1941 identified as an immature specimen of the Permian reptile Captorhinus aguti (Cope, 1882). Can. J. Earth Sci. 19, 1232–1234.
Reisz, R.R., Heaton, M.J., Pynn, B.R., 1982. Vertebrate fauna of Late Pennsylvanian Rock Lake Shale near Garnett, Kansas: Pelycosauria. J. Paleont. 56, 741–750.
Reisz, R.R., 1983. [Review of] Mammal-like Reptiles and the Origin of Mammals by T.S. Kemp. J. Vertebr. Paleontol. 2, 483–485.
Reisz, R.R., Baird, D., 1983. Captorhinomorph “stem” reptiles from the Pennsylvanian coal-swamp deposit of Linton, Ohio. Ann. Carnegie Mus. 52, 393–411.
Reisz, R.R., Berman, D.S, Scott, D., 1984. The anatomy and relationships of the Lower Permian reptile Araeoscelis. J. Vertebr. Paleontol. 4, 57–67.
Berman, D.S, Reisz, R.R., Eberth, D.A., 1985. Ecolsonia cutlerensis, an Early Permian dissorophid amphibian from the Cutler Formation of North-Central New Mexico. Circ. New Mex. Bur. Mines Miner. Resour. Bull. 191, 1–31.
Reisz, R.R., Berman, D.S, 1985. Scoliomus puercensis Williston and Case, 1913, identified as a junior synonym of Sphenacodon ferox Marsh (Reptilia, Pelycosauria). Can. J. Earth Sci. 22, 1236–1239.
Berman, D.S, Reisz, R.R., 1986. Captorhinid reptiles from the Early Permian of New Mexico, with description of a new genus and species. Ann. Carnegie Mus. 55, 1–28.
Dilkes, D.W., Reisz, R.R., 1986. The axial skeleton of the Early Permian reptile Eocaptorhinus laticeps (Williston). Can. J. Earth Sci. 23, 1288–1296.
Heaton, M.J., Reisz, R.R., 1986. Phylogenetic relationships of captorhinomorph reptiles. Can. J. Earth Sci. 23, 402–418.
Reisz, R.R., 1986, Pelycosauria. In: Wellnhofer, P. (Ed.), Handbuch der Paläoherpetologie, Volume 17A. Gustav Fischer, Stuttgart, 102 p.
Reisz, R.R., Berman, D.S, 1986. Ianthasaurus hardestii n. sp., a primitive edaphosaur (Reptilia, Pelycosauria) from the Upper Pennsylvanian Rock Lake Shale near Garnett, Kansas. Can. J. Earth Sci. 23, 77–91.
Berman, D.S, Reisz, R.R., Eberth, D.A., 1987a. A new genus and species of trematopid amphibian from the Late Pennsylvanian of north-central New Mexico. J. Vertebr. Paleontol. 7, 252–269.
Berman, D.S, Reisz, R.R., Eberth, D.A., 1987b. Seymouria sanjuanensis (Amphibia, Batrachosauria) from the Lower Permian Cutler Formation of North-Central New Mexico and the occurrence of sexual dimorphism in that genus questioned. Can. J. Earth Sci. 24, 1769–1784.
Dilkes, D.W., Reisz, R.R., 1987. Trematops milleri Williston, 1909 identified as a junior synonym of Acheloma cumminsi Cope, 1898, with a revision of the genus. Am. Mus. Novit. 2902, 1–12.
Reisz, R.R., 1988. Two small reptiles from the Late Pennsylvanian quarry near Hamilton, Kansas. Kansas Geol. Surv. Guidebook Ser. 6, 189–194.
Laurin, M., Reisz, R.R., 1989. Taxonomic position and phylogenetic relationships of Colobomycter pholeter, a small reptile from the Lower Permian of Oklahoma. Can. J. Earth Sci. 26, 544–550.
Laurin, M., Reisz, R.R., 1990. Tetraceratops is the oldest known therapsid. Nature 345, 249–250.
Modesto, S.P., Reisz, R.R., 1990a. A new skeleton of Ianthasaurus hardestii, an edaphosaur (Synapsida: Pelycosauria) from the Late Pennsylvanian of Kansas. Can. J. Earth Sci. 27, 834–844.
Modesto, S.P., Reisz, R.R., 1990b. Taxonomic status of Edaphosaurus raymondi Case. J. Paleont. 64, 1049–1051.
Reisz, R.R., 1990a. Vertebrate fauna of the Upper Pennsylvanian Rock Lake Shale near Garnett, Kansas. In: Cunningham, C.R., Maples C.G. (Eds.), 1990 Society of Vertebrate Paleontology Upper Paleozoic of eastern Kansas Excursion Guidebook. Kansas Geological Survey, Lawrence, pp. 22–25.
Reisz, R.R., 1990b. Geology and paleontology of the Garnett quarry. In: Cunningham, C.R., Maples C.G. (Eds.), 1990 Society of Vertebrate Paleontology Upper Paleozoic of eastern Kansas Excursion Guidebook. Kansas Geological Survey, Lawrence, pp. 43–48.
Godfrey, S.J., Reisz, R.R., 1991. The vertebral morphology of Gephyrostegus bohemicus Jaekel 1902, with comments on the atlas-axis complex in primitive tetrapods. Hist. Biol. 5, 27–36.
Reisz, R.R., Laurin, M., 1991. Owenetta and the origin of turtles. Nature 349, 324–326.
Berman, D.S, Reisz, R.R., 1992. Dolabrosaurus aquatilis, a small lepidosauromorph reptile from the Upper Triassic Chinle Formation of north-central New Mexico. J. Paleont. 66, 1001–1009.
Laurin, M., Reisz, R.R., 1992. A reassessment of the Pennsylvanian tetrapod Romeriscus. J. Vertebr. Paleontol. 12, 524–527.
Modesto, S.P., Reisz, R.R., 1992. Restudy of Permo-Carboniferous synapsid Edaphosaurus novomexicanus Williston and Case, the oldest known herbivorous amniote. Can. J. Earth Sci. 29, 2653–2662.
Reisz, R.R., 1992a. The chelonian story. The Sciences, pp. 37–43.
Reisz, R.R., 1992b. Ancient ancestries. University of Toronto Magazine, pp. 18–22.
Reisz, R.R., Berman, D.S, Scott, D., 1992. The cranial anatomy and relationships of Secodontosaurus, an unusual mammal-like reptile (Synapsida: Sphenacodontidae) from the Early Permian of Texas. Zool. J. Linn. Soc. 104, 127–184.
Reisz, R.R., Dilkes, D.W., 1992. The taxonomic position of Anningia megalops, a small amniote from the Permian of South Africa. Can. J. Earth Sci. 29, 1605–1608.
Reisz, R.R., Scott, D., van Bendegem, J., 1992. Atlas-axis complex of Secodontosaurus, a sphenacodontid mammal-like reptile (Eupelycosauria: Synapsida) from the Lower Permian of Texas. Can. J. Earth Sci. 29, 596–600.
Reisz, R.R., 1993a. Reply to Carroll and Chiasson. The Sciences, pp. 47–48.
Reisz, R.R., 1993b. Turtle origins and the evolution of higher vertebrates. Crucible, pp. 24–25.
Berman, D.S, Reisz, R.R., Bolt, J.R., Scott, D., 1995. The cranial anatomy and relationships of the synapsid Varanosaurus (Eupelycosauria: Ophiacodontidae) from the Early Permian of Texas and Oklahoma. Ann. Carnegie Mus. 64, 99–133.
deBraga, M., Reisz, R.R., 1995. A new diapsid reptile from the Uppermost Carboniferous (Stephanian) of Kansas. Palaeontology 38, 199–212.
Laurin, M., Reisz, R.R., 1995. A re-evaluation of early amniote phylogeny. Zool. J. Linn. Soc. 113, 165–223.
Sues, H.-D., Reisz, R.R., 1995. First record of the Early Mesozoic sphenodontian Clevosaurus (Lepidosauria: Rhynchocephalia) from the Southern Hemisphere. J. Paleont. 69, 123–126.
deBraga, M., Reisz, R.R., 1996. The Early Permian reptile Acleistorhinus pteroticus and its phylogenetic position. J. Vertebr. Paleontol. 16, 384–395.
Dilkes, D.W., Reisz, R.R., 1996. First record of a basal synapsid (’mammal-like reptile’) in Gondwana. Proc. R. Soc. Lond. B 263, 1165–1170.
Laurin, M., Reisz, R.R., 1996. The osteology and relationships of Tetraceratops insignis, the oldest known therapsid. J. Vertebr. Paleontol. 16, 95–102.
Reisz, R.R., 1996. [Review of] The Skull edited by J. Hanken and B. K. Hall. Q. Rev. Biol. 71, 135–136.
Reisz, R.R., Modesto, S.P., 1996. Archerpeton anthracos from the Joggins Formation of Nova Scotia: a microsaur, not a reptile. Can. J. Earth Sci. 33, 703–709.
Laurin, M., Reisz, R.R., 1997. A new perspective on tetrapod phylogeny. In: Sumida, S.S., Martin, K. (Eds.), Amniote Origins: Completing the Transition to Land. Academic Press, San Diego, pp. 9–59.
Reisz, R.R., 1997a. [Review of] Fossil Reptiles of Great Britain by M.J. Benton and P.S. Spencer, Q. Rev. Biol. 72, 191–192.
Reisz, R.R., 1997b. The origin and early evolutionary history of amniotes. Trends Ecol. Evol. 12, 218–222.
Reisz, R.R., Wilson, H., Scott, D., 1997. Varanopseid synapsid skeletal elements from Richard Spur, a Lower Permian fissure fill near Fort Sill, Oklahoma. Oklahoma Geology Notes 57, 160–170.
Holmes, R.B., Carroll, R.L., Reisz, R.R., 1998. The first articulated skeleton of Dendrerpeton acadianum (Temnospondyli, Dendrerpetontidae) from the Lower Pennsylvanian locality of Joggins, Nova Scotia, and a review of its relationships. J. Vertebr. Paleontol. 18, 64–79.
Reisz, R.R., Dilkes, D.W., Berman, D.S, 1998. Anatomy and relationships of Elliotsmithia longiceps Broom, a small synapsid (H.-D. Eupelycosauria: Varanopseidae) from the Late Permian of South Africa. J. Vertebr. Paleontol. 18, 602–611.
Sues, H.-D., Reisz, R.R., 1998. Origins and early evolution of herbivory in tetrapods. Trends Ecol. Evol. 13, 141–145.
Krupina, N.I., Reisz, R.R., 1999. Reconstruction of dentition in hatchlings of Andreyevichthys epitomus, a Late Famennian dipnoan from Russia. Mod. Geol. 24, 99–108.
Laurin, M., Reisz, R.R., 1999. A new study of Solenodonsaurus janenschi, and a reconsideration of amniote origins and stegocephalian evolution. Can. J. Earth Sci. 36, 1239–1255.
Reisz, R.R., 1999a. Pelycosaurs. In: Singer, R. (Ed.), The Encyclopedia of Paleontology. Fitzroy Dearborn Publishers, Chicago, pp. 861–867.
Reisz, R.R., 1999b. Sauropsids. In: Singer, R. (Ed.), The Encyclopedia of Paleontology. Fitzroy Dearborn Publishers, Chicago, pp. 1056–1060.
Rieppel, O., Reisz, R.R., 1999. The origin and early evolution of turtles. Annu. Rev. Ecol. Syst. 30, 1–22.
Sullivan, C., Reisz, R.R., 1999. First record of Seymouria (Vertebrata: Seymouriamorpha) from Early Permian fissure fills at Richards Spur, Oklahoma. Can. J. Earth Sci. 36, 1257–1266.
Berman, D.S, Reisz, R.R., Scott, D., Henrici, A.C., Sumida, S.S., Martens, T., 2000. Early Permian bipedal reptile. Science 290, 969–972.
Laurin, M., Reisz, R.R., Girondot, M., 2000. Caecilian viviparity and amniote origins: a reply to Wilkinson and Nussbaum. J. Nat. Hist. 34, 311–315.
Reisz, R.R., Krupina, N., 2000. Phylogeny of Devonian lungfishes, with special emphasis on forms from the Russian Platform. Paleont. J. 34, 147–153.
Reisz, R.R., Modesto, S.P., Scott, D., 2000. Acanthotoposaurus bremneri and the origin of the Triassic archosauromorph reptile fauna of South Africa. S. Afr. J. Sci. 96, 443–445.
Reisz, R.R., Sues, H.-D., 2000a. The ‘feathers’ of Longisquama. Nature 408, 428.
Reisz, R.R., Sues, H.-D., 2000b. Herbivory in Late Paleozoic and Triassic terrestrial vertebrates. In: Sues, H.-D. (Ed.), Evolution of Herbivory in Terrestrial Vertebrates. Cambridge University Press, Cambridge, pp. 9–41.
Sullivan, C., Reisz, R.R., May, W.J., 2000. Large dissorophoid skeletal elements from the Lower Permian Richards Spur Fissures, Oklahoma, and their paleoecological implications. J. Vertebr. Paleontol. 20, 456–461.
Berman, D.S, Reisz, R.R., Martens, T., Henrici, A.C., 2001. A new species of Dimetrodon (Synapsida: Sphenacodontidae) from the Lower Permian of Germany records first occurrence of genus outside of North America. Can. J. Earth Sci. 38, 803–812.
Krupina, N.I., Reisz, R.R., Scott, D., 2001. The skull and tooth system of Orlovichthys limnatis, a Late Devonian dipnaon from Russia. Can. J. Earth Sci. 38, 1301–1311.
Reisz, R.R., Berman, D.S., 2001. The skull of Mesenosaurus romeri, a small varanopseid (Synapsida: Eupelycosauria) from the Upper Permian of the Mezen River basin, northern Russia. Ann. Carnegie Mus. 70, 113–132.
Reisz, R.R., Laurin, M., 2001. The reptile Macroleter: first vertebrate evidence for correlation of Upper Permian continental strata of North America and Russia. Geol. Soc. Amer. Bull. 113, 1229–1233.
Reisz, R.R., Sutherland, T.E., 2001. A diadectid (Tetrapoda: Diadectomorpha) from the Lower Permian fissure fills of the Dolese quarry, near Richards Spur, Oklahoma. Ann. Carnegie Mus. 70, 133–142.
Rybczynski, N., Reisz, R.R., 2001. Earliest evidence for efficient oral processing in a terrestrial herbivore. Nature 411, 684–686.
Kissel, R.A., Dilkes, D.W., Reisz, R.R., 2002. Captorhinus magnus, a new captorhinid (Amniota: Eureptilia) from the Lower Permian of Oklahoma, with new evidence on the homology of the astragalus. Can. J. Earth Sci. 39, 1363–1372.
Reisz, R.R., Barkas, V., Scott, D., 2002. A new Early Permian bolosaurid reptile from the Richards Spur Dolese Brothers Quarry, near Fort Sill, Oklahoma. J. Vertebr. Paleontol. 22, 23–28.
Reisz, R.R., Laurin, M., 2002. The reptile Macroleter: the first vertebrate evidence for correlation of Upper Permian continental strata of North America and Russia. Reply. Geol. Soc. Amer. Bull. 114, 1176–1177.
Reisz, R.R., Scott, D., 2002. Owenetta kitchingorum, sp. nov., a small parareptile (Procolophonia: Owenettidae) from the Lower Triassic of South Africa. J. Vertebr. Paleontol. 22, 244–256.
Modesto, S.P., Reisz, R.R., 2003. An enigmatic new diapsid reptile from the Upper Permian of eastern Europe. J. Vertebr. Paleontol. 22, 851–855.
Anderson, J.S., Reisz, R.R., 2003. A new microsaur (Tetrapoda: Lepospondyli) from the Lower Permian of Richards Spur (Fort Sill), Oklahoma. Can. J. Earth Sci. 40, 499–505.
Reisz, R.R., Dilkes, D.W., 2003. Archaeovenator hamiltonensis, a new varanopid (Synapsida: Eupelycosauria) from the Upper Carboniferous of Kansas. Can. J. Earth Sci. 40, 667–678.
Reisz, R.R., 2003. [Review of] Gaining Ground: the Origin and Evolution of Tetrapods by J.A. Clack. J. Vertebr. Paleontol. 23, 713.
Sullivan, C., Reisz, R.R., Smith, R.M.H., 2003. The Permian mammal-like herbivore Diictodon, the oldest known example of sexually dimorphic armament. Proc. R. Soc. Lond. B 270, 173–178.
Anderson, J.S., Reisz, R.R., 2004. Pyozia mesenensis, a new, small varanopid (Synapsida, Eupelycosauria) from Russia: “pelycosaur” diversity in the Middle Permian. J. Vertebr. Paleontol. 24, 173–179.
Kissel, R.A., Reisz, R.R., 2004a. Synapsid fauna of the Upper Pennsylvanian Rock Lake Shale near Garnett, Kansas and the diversity pattern of early amniotes. In: Arratia, G., Wilson, M.V.H., Cloutier R. (Eds.), Recent Advances in the Origin and Early Radiation of Vertebrates. Verlag Dr. Friedrich Pfeil, Munich, pp. 409–428.
Kissel, R.A., Reisz, R.R., 2004b. Ambedus pusillus, new genus, new species, a small diadectid (Tetrapoda: Diadectomorpha) from the Lower Permian of Ohio with a consideration of diadectomorph phylogeny. Ann. Carnegie Mus. 73, 197–212.
Reisz, R.R., Krupina, N.I., Smith, M.M., 2004. Dental histology in Ichnomylax karatajae sp. nov., an Early Devonian dipnoan from the Taymlir Peninsula, Siberia, with a discussion on petrodentine. J. Vertebr. Paleontol. 24, 18–25.
Reisz, R.R., Laurin, M., 2004. A re-evaluation of the enigmatic Permian synapsid Watongia and of its stratigraphic significance. Can. J. Earth Sci. 41, 377–386.
Reisz, R.R., Müller, J., 2004a. Molecular timescales and the fossil record: a paleontological perspective. Trends Genet. 20, 237–241.
Reisz, R.R., Müller, J., 2004b. The comparative method for evaluating fossil calibration dates: a reply to Hedges and Kumar. Trends Genet. 20, 596–597.
Sues, H.-D., Reisz, R.R., Hinic, S., Raath, M.A., 2004. On the skull of Massospondylus carinatus Owen, 1854 (Dinosauria: Sauropodomorpha) from the Elliot and Clarens formations (Lower Jurassic) of South Africa. Ann. Carnegie Mus. 73, 239–257.
Müller, J., Reisz, R.R., 2005a. An early captorhinid reptile (Amniota, Eureptilia) from the Upper Carboniferous of Hamilton, Kansas. J. Vertebr. Paleontol. 25, 561–568.
Müller, J., Reisz, R.R., 2005b. Four well-constrained calibration points from the vertebrate fossil record for molecular clock estimates. BioEssays 27, 1069–1075.
Reisz, R.R., 2005a. Oromycter, a new caseid from the Lower Permian of Oklahoma. J. Vertebr. Paleontol. 25, 905–910.
Reisz, R.R., 2005b. Reptiles other than dinosaurs. In: Selley, R.C., Cocks, L.R.M., Plimer, I.R. (Eds.), Encyclopedia of Geology. Elsevier, Oxford, pp. 479–490.
Reisz, R.R., Berman, D.S, Henrici, A.C., 2005. A new skull of the cochleosaurid amphibian Chenoprosopus (Amphibia: Temnospondyli) from the Early Permian of New Mexico. New Mexico Mus. Nat. Hist. Sci. Bull. 30, 253–256.
Reisz, R.R., Scott, D.M., Sues, H.-D., Evans, D.C., Raath, M.A., 2005. Embryos of an Early Jurassic prosauropod dinosaur and their evolutionary significance. Science 309, 761–764.
Sullivan, C., Forster, C.A., Reisz, R.R., 2005. The type specimen of Tetragonosaurus erectofrons (Ornithischia: Hadrosauridae) and the identification of juvenile lambeosaurines. In: Currie, P.J., Koppelhus, E. (Eds.), Dinosaur Provincial Park: A Spectacular Ancient Ecosystem Revealed. Indiana University Press, Bloomington, pp. 349–366.
Sullivan, C., Reisz, R.R., 2005. Cranial anatomy and taxonomy of the Permian dicynodont Diictodon. Ann. Carnegie Mus. 75, 45–75.
Maddin, H.C., Evans, D.C., Reisz, R.R., 2006. An Early Permian varanodontine varanopid (Synapsida: Eupelycosauria) from the Richards Spur locality, Oklahoma. J. Vertebr. Paleontol. 26, 957–966.
Müller, J., Reisz, R.R., 2006a. The phylogeny of early eureptiles: comparing parsimony and Bayesian approaches in the investigation of a basal fossil clade. Syst. Biol. 55, 503–511.
Müller, J., Reisz, R.R., 2006b. Constraining calibrations properly: reply to Hedges, Kumar and van Tuinen. BioEssays 18, 772-773.
Reisz, R.R., 2006. Origin of dental occlusion in tetrapods: signal for terrestrial vertebrate evolution? J. Exp. Zool. B (Mol. Dev. Evol.) 306, 261–277.
Reisz, R.R., Tsuji, L.A., 2006. An articulated skeleton of Varanops with bite marks: the oldest known evidence of scavenging among terrestrial vertebrates. J. Vertebr. Paleontol. 26, 1021–1023.
Evans, D.C., Reisz, R.R., 2007. Anatomy and relationships of Lambeosaurus magnicristatus, a crested hadrosaurid dinosaur (Ornithischia) from the Dinosaur Park Formation, Alberta. J. Vertebr. Paleontol. 27, 373–393.
Evans, D.C., Reisz, R.R., Dupuis, K., 2007. A juvenile Parasaurolophus (Ornithischia: Hadrosauridae) braincase from Dinosaur Provincial Park, Alberta, with comments on crest ontogeny in the genus. J. Vertebr. Paleontol. 27, 642–650.
Folinsbee, K.E., Müller, J., Reisz, R.R., 2007. Canine grooves: morphology, function, and relevance to venom. J. Vertebr. Paleontol. 27, 547–551.
Maddin, H.C., Musat-Marcu, S., Reisz, R.R., 2007. Histological microstructure of the claws of the African clawed frog, Xenopus laevis (Anura: Pipidae): implications for the evolution of claws in tetrapods. J. Exp. Zool. B (Mol. Dev. Evol.) 308B, 259–268.
Maddin, H.C., Reisz, R.R., 2007. The morphology of the terminal phalanges in Permo-Carboniferous synapsids: an evolutionary perspective. Can. J. Earth Sci. 44, 267–274.
Modesto, S.P., Scott, D.M., Berman, D.S, Müller, J., Reisz, R.R., 2007. The skull and the palaeoecological significance of Labidosaurus hamatus, a captorhinid reptile from the Lower Permian of Texas. Zool. J. Linn. Soc. 149, 237–262.
Reisz, R.R., 2007. Cranial anatomy of basal diadectomorphs and the origin of amniotes. In: Anderson, J.S., Sues, H.-D. (Eds.), Major Transitions in Vertebrate Evolution. Indiana University Press, Bloomington, pp. 351–377.
Reisz, R.R., Modesto, S.P., 2007. Heleosaurus scholtzi from the Permian of South Africa: a varanopid synapsid, not a diapsid reptile. J. Vertebr. Paleontol. 27, 727–733.
Reisz, R.R., Müller, J., Tsuji, L., Scott, D., 2007. The cranial osteology of Belebey vegrandis (Parareptilia: Bolosauridae), from the Middle Permian of Russia, and its bearing on reptilian evolution. Zool. J. Linn. Soc. 151, 191–214.
Anderson, J.S., Reisz, R.R., Scott, D., Fröbisch, N.B., Sumida, S.S., 2008. A stem batrachian from the Early Permian of Texas and the origin of frogs and salamanders. Nature 453, 515–518.
Fröbisch, J., Reisz, R.R., 2008. A new species of Emydops (Synapsida, Anomodontia) and a discussion of dental variability and pathology in dicynodonts. J. Vertebr. Paleontol. 28, 770–787.
Fröbisch, N.B., Reisz, R.R., 2008. A new Lower Permian amphibamid (Dissorophoidea, Temnospondyli) from the fissure fill deposits near Richards Spur, Oklahoma. J. Vertebr. Paleontol. 28, 1015–1030.
Maddin, H.C., Sidor, C.A., Reisz, R.R., 2008. Cranial anatomy of Ennatosaurus tecton (Synapsida: Caseidae) from the Middle Permian of Russia and the evolutionary relationships of Caseidae. J. Vertebr. Paleontol. 28, 160–180.
Modesto, S.P., Reisz, R.R., 2008. New material of Colobomycter pholeter, a small parareptile from the Lower Permian of Oklahoma. J. Vertebr. Paleontol. 28, 677–684.
Müller, J., Li, J., Reisz, R.R., 2008. A new bolosaurid parareptile, Belebey chengi sp. nov., from the Middle Permian of China and its paleogeographic significance. Naturwissenschaften 95, 1169–1174.
Reisz, R.R., Head, J.J., 2008. Turtle origins out to sea. Nature 456, 450–451.
Sues, H.-D., Reisz, R.R., 2008. Anatomy and phylogenetic relationships of Sclerosaurus armatus (Amniota: Parareptilia) from the Buntsandstein (Triassic) of Europe. J. Vertebr. Paleontol. 28, 1031–1042.
Anderson, J.S., Scott, D., Reisz, R.R., 2009. Nannaroter mckinziei, a new ostodolepid ‘microsaur’ (Tetrapoda, Lepospondyli, Recumbirostra) from the Early Permian of Richards Spur (Ft. Sill), Oklahoma. J. Vertebr. Paleontol. 29, 379–388.
Bickelmann, C., Müller, J., Reisz, R.R., 2009. The enigmatic diapsid Acerosodontosaurus piveteaui (Reptilia: Neodiapsida) from the Upper Permian of Madagascar and the paraphyly of “younginiform” reptiles. Can. J. Earth Sci. 46, 651–661.
Evans, D.C., Maddin, H.C., Reisz, R.R., 2009. A re-evaluation of sphenacodontid synapsid material from the Lower Permian fissure fills near Richards Spur, Oklahoma. Palaeontology 52, 219–227.
Fröbisch, J., Reisz, R.R., 2009. The Late Permian herbivore Suminia and the early evolution of arboreality in terrestrial vertebrate ecosystems. Proc. R. Soc. B 276, 3611–3618.
Modesto, S.P., Scott, D.M., Reisz, R.R., 2009a. A new parareptile with temporal fenestration from the Middle Permian of South Africa. Can. J. Earth Sci. 46, 9–20.
Modesto, S.P., Scott, D.M., Reisz, R.R., 2009b. Arthropod remains in the oral cavities of fossil reptiles support inference of early insectivory. Biol. Lett. 5, 838–840.
Reisz, R.R., Godfrey, S., Scott, D., 2009. Eothyris and Oedaleops: do these Early Permian synapsids form a clade? J. Vertebr. Paleontol. 29, 39–47.
Reisz, R.R., Schoch, R.R., Anderson, J.S., 2009. The armoured dissorophid Cacops from the Early Permian of Oklahoma and the exploitation of the terrestrial realm by amphibians. Naturwissenschaften 96, 789–796.
Berman, D.S, Reisz, R.R., Scott, D., 2010. Redescription of the skull of Limnoscelis paludis Williston (Diadectomorpha: Limnoscelidae) from the Pennsylvanian of Canon del Cobre, northern New Mexico. New Mexico Mus. Nat. Hist. Sci. Bull. 49, 185–210.
Campione, N.E., Reisz, R.R., 2010. Varanops brevirostris (Eupelycosauria: Varanopidae) from the Lower Permian of Texas, with discussion of varanopid morphology and interrelationships. J. Vertebr. Paleontol. 30, 724–746.
Maddin, H.C., Reisz, R.R., Anderson, J.S., 2010. Evolutionary development of the neurocranium in Dissorophoidea (Tetrapoda: Temnospondyli): an integrative approach. Evol. Dev. 12, 393–403.
Mazierski, D.M., Reisz, R.R., 2010. Description of a new specimen of Ianthasaurus hardestiorum (Eupelycosauria: Edaphosauridae) and a re-evaluation of edaphosaurid phylogeny. Can. J. Earth Sci. 47, 901–912.
Modesto, S.P., Scott, D.M., Botha-Brink, J., Reisz, R.R., 2010. A new and unusual procolophonid parareptile from the Lower Triassic Katberg Formation of South Africa. J. Vertebr. Paleontol. 30, 715–723.
Reisz, R.R., Evans, D.C., Sues, H.-D., Scott, D., 2010. Embryonic skeletal anatomy of the sauropodomorph dinosaur Massospondylus from the Lower Jurassic of South Africa. J. Vertebr. Paleontol. 30, 1653–1665.
Reisz, R.R., Laurin, M., Marjanović, D., 2010. Apsisaurus witteri from the Lower Permian of Texas: yet another small varanopid synapsid, not a diapsid. J. Vertebr. Paleontol. 30, 1628–1631.
Tsuji, L.A., Müller, J., Reisz, R.R., 2010. Microleter mckinzieorum gen. et sp. nov. from the Lower Permian of Oklahoma: the basalmost parareptile from Laurasia. J. Syst. Palaeontol. 8, 245–255.
Woodhead, J., Reisz, R.R., Fox, D., Drysdale, R., Hellstrom, J., Maas, R., Cheng, H., Edwards, R.L., 2010. Speleothem climate records from deep time? Exploring the potential with an example from the Permian. Geology 38, 455–458.
Benson, R.B.J., Domokos, G., Várkonyi, P.L., Reisz, R.R., 2011. Shell geometry and habitat determination in extinct and extant turtles (Reptilia: Testudinata). Paleobiology 37, 547–562.
Campione, N.E., Reisz, R.R., 2011. Morphology and evolutionary significance of the atlas-axis complex in varanopid synapsids. Acta Palaeont. Pol. 56, 739–748.
Fröbisch, J., Reisz, R.R., 2011. The postcranial anatomy of Suminia getmanovi (Synapsida: Anomodontia), the earliest known arboreal tetrapod. Zool. J. Linn. Soc. 162, 661–698.
Huttenlocker, A., Mazierski, D.M., Reisz, R.R., 2011. Comparative osteohistology of hyperelongate neural spines in the Edaphosauridae (Amniota: Synapsida). Palaeontology 54, 573–590.
Modesto, S.P., Smith, R.M.H., Campione, N.E., Reisz, R.R., 2011. The last “pelycosaur”: a varanopid synapsid from the Pristerognathus Assemblage Zone, Middle Permian of South Africa. Naturwissenschaften 98, 1027–1034.
Müller, J., Hipsley, C.A., Head, J.J., Kardjilov, N., Hilger, A., Wuttke, M., Reisz, R.R., 2011. Eocene lizard from Germany reveals amphisbaenian origins. Nature 473, 364–367.
Organ, C.L., Canoville, A., Reisz, R.R., Laurin, M., 2011. Paleogenomic data suggest mammal-like genome size in the ancestral amniote and derived large genome size in amphibians. J. Evol. Biol. 24, 372–380.
Polley, B., Reisz, R.R., 2011. A new Lower Permian trematopid (Temnospondyli: Dissorophoidea) from Richards Spur, Oklahoma. Zool. J. Linn. Soc. 161, 789–815.
Reisz, R.R., 2011. [Review of] Triassic Life on Land: The Great Transition by H.-D. Sues and N.C. Fraser. Q. Rev. Biol. 86, 337–338.
Reisz, R.R., Liu, J., Li, J.L., Müller, J., 2011. A new captorhinid reptile, Gansurhinus qingtoushanensis, gen. et sp. nov., from the Permian of China. Naturwissenschaften 98, 435–441.
Reisz, R.R., Maddin, H.C., Fröbisch, J., Falconnet, J., 2011. A new large caseid (Synapsida, Caseasauria) from the Permian of Rodez (France), including a reappraisal of “Casea” rutena Sigogneau-Russell & Russell, 1974. Geodiversitas 33, 227–246.
Reisz, R.R., Modesto, S.P., Scott, D.M., 2011. A new Early Permian reptile and its significance in early diapsid evolution. Proc. R. Soc. B 278, 3731–3737.
Reisz, R.R., Scott, D.M., Pynn, B.R., Modesto, S.P., 2011. Osteomyelitis in a Paleozoic reptile: ancient evidence for bacterial infection and its evolutionary significance. Naturwissenschaften 98, 551–555.
Rowe, T.B., Sues, H.-D., Reisz, R.R., 2011. Dispersal and diversity in the earliest North American sauropodomorph dinosaurs, with a description of a new taxon. Proc. R. Soc. B 278, 1044–1053.
Fröbisch, N., Reisz, R.R., 2012. A new species of dissorophid (Cacops woehri) from the Lower Permian Dolese Quarry, near Richards Spur, Oklahoma. J. Vertebr. Paleontol. 32, 35–44.
Reisz, R.R., Evans, D.C., Roberts, E.M., Sues, H.-D., Yates, A.M., 2012. Oldest known dinosaurian nesting site and reproductive biology of the Early Jurassic sauropodomorph Massospondylus. Proc. Natl. Acad. Sci. U.S.A. 109, 2428–2433.
Tsuji, L.A., Müller, J., Reisz, R.R., 2012. Anatomy of Emeroleter levis and the phylogeny of the nycteroleter parareptiles. J. Vertebr. Paleontol. 32, 45–67.
McDougall, M.J., Reisz, R.R., 2012. A new parareptile (Parareptilia, Lanthanosuchoidea) from the Early Permian of Oklahoma. J. Vertebr. Paleontol. 32, 1018–1026.
Laurin, M., Reisz, R.R., in press. Synapsida. In: Cantino, P.D., de Queiroz, K., Gauthier, J.A. (Eds.), Phylonyms: A Companion to the PhyloCode. University of California Press, Berkeley, CA.
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Earth Sci.2419871769–1784CampioneN.E.ReiszR.R.Morphology and evolutionary significance of the atlas-axis complex in varanopid synapsidsActa Palaeont. Pol.562011739–748CarrollR.L.Vertebrate Paleontology and Evolution1988W.H. FreemanNew York698 p.FolinsbeeK.E.MüllerJ.ReiszR.R.Canine grooves: morphology, function, and relevance to venomJ. Vertebr. Paleontol.272007547–551KisselR.A.ReiszR.R.Ambedus pusillus, new genus, new species, a small diadectid (Tetrapoda: Diadectomorpha) from the Lower Permian of Ohio with a consideration of diadectomorph phylogenyAnn. Carnegie Mus.732004197–212KrupinaN.I.ReiszR.R.Reconstruction of dentition in hatchlings of Andreyevichthys epitomus, a late Famennian dipnoan from RussiaMod. Geol.24199999–108LaurinM.ReiszR.R.A reevaluation of early amniote phylogenyZool. J. Linn. Soc.1131995165–223LaurinM.ReiszR.R.The osteology and relationships of Tetraceratops insignis, the oldest known therapsidJ. Vertebr. Paleontol.16199695–102LaurinM.ReiszR.R.A new perspective on tetrapod phylogenySumidaS.S.MartinK.Amniote Origins: Completing the Transition to Land1997Academic PressSan Diego9–59LaurinM.ReiszR.R.A new study of Solenodonsaurus janenschi, and a reconsideration of amniote origins and stegocephalian evolutionCan. J. Earth Sci.3619991239–1255MarjanovićD.LaurinM.Fossils, molecules, divergence times, and the origin of lissamphibiansSyst. Biol.562007369–388MüllerJ.ReiszR.R.Four well-constrained calibration points from the vertebrate fossil record for molecular clock estimatesBioEssays2720051069–1075MüllerJ.ReiszR.R.The phylogeny of early eureptiles: comparing parsimony and Bayesian approaches in the investigation of a basal fossil cladeSyst. Biol.552006503–511OrganC.L.CanovilleA.ReiszR.R.LaurinM.Paleogenomic data suggest mammal-like genome size in the ancestral amniote and derived large genome size in amphibiansJ. Evol. 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Earth Sci.331996703–709ReiszR.R.MüllerJ.Molecular timescales and the fossil record: a paleontological perspectiveTrends Genet.202004237–241ReiszR.R.SmithM.M.Lungfish dental pattern conserved for 360 MyrNature4112001548ReiszR.R.SuesH.D.Herbivory in Late Paleozoic and Triassic terrestrial vertebratesSuesH.D.Evolution of Herbivory in Terrestrial Vertebrates2000Cambridge University PressCambridge9–41ReiszR.R.SuesH.D.The ‘feathers’ of LongisquamaNature4082000428ReiszR.R.BermanD.S.ScottD.The cranial anatomy and relationships of Secodontosaurus, an unusual mammal-like reptile (Synapsida: Sphenacodontidae) from the Early Permian of TexasZool. J. Linn. Soc.1041992127–184ReiszR.R.EvansD.C.RobertsE.M.SuesH.D.YatesA.M.Oldest known dinosaurian nesting site and reproductive biology of the Early Jurassic sauropodomorph MassospondylusProc. Natl. Acad. Sci. U.S.A.10920122428–2433ReiszR.R.HeatonM.J.PynnB.R.Vertebrate fauna of Late Pennsylvanian Rock Lake Shale near Garnett, Kansas: PelycosauriaJ. 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Robert R. Reisz and his doctoral students around 1990. From left to right, Michael deBraga, David W. Dilkes, Robert R. Reisz, Michel Laurin (in the back), and Sean P. Modesto (in front).
Robert R. Reisz et ses thésards vers 1990. De gauche à droite, Michael deBraga, David W. Dilkes, Robert R. Reisz, Michel Laurin (au fond), and Sean P. Modesto (devant).
Picture by Diane Scott.
The Reisz lab in 2004. From left to right, in the back, Kevin Dupuis, Kaila Folinsbee, Robert R. Reisz, Diane Scott, Linda A. Tsuji, and Jörg Fröbisch, and in the front, Johannes Müller, Hillary C. Maddin, and David C. Evans. Picture by Nadia Fröbisch.
Le laboratoire de Reisz en 2004. De gauche à droite, au fond, Kevin Dupuis, Kaila Folinsbee, Robert R. Reisz, Diane Scott, Linda A. Tsuji, et Jörg Fröbisch, et devant, Johannes Müller, Hillary C. Maddin, et David C. Evans. Photo par Nadia Fröbisch.
Some of the exquisite vertebrate fossils studied by Robert Reisz and his students and associates. A. Skull of the dissorophid Cacops morrisi. B. Skeleton of the varanopid Aerosaurus wellesi. C. Skeleton of the amphibamid Gerobatrachus hottoni. D. Skeleton of the basal diapsid Araeoscelis casei. E. Skull of a juvenile of the sauropodomorph Massospondylus carinatus. Each figure part is at a different scale (scales shown only for parts B and E).
Certains des exquis fossiles de vertébrés étudiés par Robert Reisz et ses étudiants et collaborateurs. A. Le crâne du dissorophidé Cacops morrisi. B. Squelette du varanopidé Aerosaurus wellesi. C. Squelette de l’amphibamidé Gerobatrachus hottoni. D. Squelette du reptile diapsidé Araeoscelis casei. E. Le crâne d’un jeune dinosaure sauropodomorphe Massospondylus carinatus. Chaque partie de la figure est à une échelle différente (échelle visible seulement dans les parties B et E).