A “beaded” sphenodontian (Diapsida: Lepidosauria) from the Early Cretaceous of central Mexico

LITERATURE CITED

• Applegate , S. P. , Espinosa-Arrubarrena , L. and López-Neri. , P. 1984 . Las Calizas Litográficas de la Cantera Tlayua en Tepexi de Rodríguez, Puebla, México. Libreto Guía de la Excursión, VII Convención Geológica Nacional 83 Mexico, D. F. : Sociedad Geológica Mexicana .
   Google Scholar
• Arrington , O. N. 1930 . Notes on the two poisonous lizards with special reference to Heloderma suspectum . Bulletin of the Antivenin Institute of America , 4 : 26 – 35 .
   Google Scholar
• Bogert , C. M. and Martín-del-Campo. , R. 1956 . The gila monster and its allies. American Museum of Natural History . Bulletin , 109 : 1 – 238 .
   Google Scholar
• Carroll , R. L. 1985 . A pleurosaur from the Lower Jurassic and the taxonomic position of the Sphenodontida. Palaeontographica . Abteilung A , 189 : 1 – 28 .
   Google Scholar
• Carroll , R. L. and Wild , R. 1994 . “ Marine members of the Sphenodontia ” . In In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods Edited by: Fraser , N. C. and Sues , H.-D. 70 – 83 . Cambridge University Press . Cambridge and New York
   Google Scholar
• Cocude-Michel , M. 1963 . Les rhynchocephales et les sauriens de calcaires lithographiques (Jurassique supérieur) d'Europe occidentale. . Nouvelles Archives du Muséum d'Histoire Naturelle de Lyon , 7 : 1 – 187 .
   Google Scholar
• Colenso , W. 1886 . Notes on the bones of a species of Sphenodon (S. diversum, Col.) apparently distinct from the species already known. . Transactions and Proceedings of the New Zealand Institute , 18 : 118 – 123 .
   Google Scholar
• Dawbin , W. H. 1982 . “ The tuatara Sphenodon punctatus (Reptilia: Rhynchocephalia): a review ” . In New Zealand Herpetology. New Zealand Wildlife Service 2 Edited by: Newman , D. G. 149 – 181 . Wellington .
   Google Scholar
• Evans , S. E. and Sigogneau-Russell , D. 1997 . New sphenodontians (Diapsida: Lepidosauria: Rhynchocephalia) from the Early Cretaceous of North Africa. . Journal of Vertebrate Paleontology , 17 : 45 – 51 .
   Web of Science ®Google Scholar
• Fabre , J. 1973 . Un squelette d'Homoeosaurus aff. solnhofensis (Rhynchocephalia) du Portlandien du Petit Plan de Canjuers (Var). Comptes Rendus de l'Académie des Sciences . Paris , 276 : 1139 – 1142 .
   Google Scholar
• Fabre , J. 1974 . Un squelette de Pleurosaurus ginsburgi nov. sp. (Rhynchocephalia) du Portlandien du Petit Plan de Canjuers (Var.). Comptes Rendus de l'Académie des Sciences, Paris. . Sèrie D , 278 : 2417 – 2420 .
   Google Scholar
• Fraser , N. C. 1982 . A new rhynchocephalian from the British Upper Trias. . Palaeontology , 25 : 709 – 725 .
   Web of Science ®Google Scholar
• Fraser , N. C. 1986 . New Triassic sphenodontids from South-West England and a review of their classification. . Palaeontology , 29 : 165 – 186 .
   Web of Science ®Google Scholar
• Fraser , N. C. 1988 . The osteology and relationships of Clevosaurus (Reptilia: Sphenodontida). Philosophical Transactions of the Royal Society of London . Series B , 321 : 125 – 172 .
   Google Scholar
• Fraser , N. C. and Benton , M. J. 1989 . The Triassic reptiles Brachyrhinodon Polysphenodon and relationships of the sphenodontids. . Zoological Journal of the Linnean Society , 96 : 413 – 445 .
   Web of Science ®Google Scholar
• Gilmore , C. W. 1909 . A new rhynchocephalian reptile from the Jurassic of Wyoming, with notes on the fauna of “Quarry 9”. United States National Museum . Proceedings , 37 : 35 – 42 .
   Google Scholar
• Harrison , H. S. 1901 . The development and succession of teeth in Hatteria punctata . Quarterly Journal of Microscopical Sciences , 44 : 161 – 213 .
   Google Scholar
• Howes , G. B. and Swinnerton , H. H. 1901 . On the development of the skeleton of the tuatara, Sphenodon punctatus; with remarks on the egg, hatching, and on the hatched young. . Transactions of the Zoological Society of London 16, part , 1 : 1 – 74 .
   Google Scholar
• v. Huene , F. 1952 . Revision der Gattung Pleurosaurus auf Grund neuer und alter Funde. . Palaeontographica , 101 : 167 – 200 . A
   Google Scholar
• Olson , E. C. 1960 . A trilophosaurid reptile from the Kootenai Formation (Lower Cretaceous). . Journal of Paleontology , 34 : 551 – 555 .
   Web of Science ®Google Scholar
• Pantoja-Alor , J. 1992 . Geologia y paleoambiente de la Cantera Tlayúa, Tepexi de Rodríguez, Estado de Puebla. Universidad Nacional Autónoma de México, Instituto de Geología . Revista , 9 : 156 – 169 .
   Google Scholar
• Porter , K. R. 1972 . Herpetology 524 Philadelphia : Saunders .
   Google Scholar
• Rage , J. C. , Buffetaut , E. , Buffetaut-Tong , H. , Chaimanee , Y. , Ducrocq , S. , Jaeger , J. J. and Suteethorn , V. 1992 . A colubrid snake in the Late Eocene of Thailand: The oldest known Colubridae (Reptilia, Serpentes). Comptes Rendus de l'Académie des Sciences, Paris 314 1085 – 1089 .
   Google Scholar
• Rage , J. C. and Richter , A. 1994 . A snake of the Lower Cretaceous (Barremian) of Spain: the oldest known snake. Neues Jahrbuch für Geologie und Paläontologie . Monatshefte , 1994 : 561 – 565 .
   Google Scholar
• Rasmussen , T. E. and Callison , G. 1981 . A new herbivorous sphenodontid (Rhynchocephalia: Reptilia) from the Jurassic of Colorado. . Journal of Paleontology , 55 : 1109 – 1116 .
   Web of Science ®Google Scholar
• Renesto , S. 1995 . A sphenodontid from the Norian (Late Triassic) of Lombardy (Northern Italy): a preliminary note. . Modern Geology , 20 : 149 – 158 .
   Google Scholar
• Reynoso , V.-H. 1992 . Descripción de los esfenodontes (Sphenodontia, Reptilia) de la fauna del Cañón del Huizachal (Jurásico TempranoMedio), Tamaulipas, México Master's Thesis, Universidad Nacional Autónoma de México
   Google Scholar
• Reynoso , V.-H. 1995 . Ontogenetic variation of teeth and jaws of a new sphenodontian: evidence for the homology of the sphenodontian caniniform tooth. . Journal of Vertebrate Paleontology , 15 ( Supplement to number 3 ) : 49A
   Google Scholar
• Reynoso , V.-H. 1996 . A Middle Jurassic Sphenodon-like sphenodontian (Diapsida: Lepidosauria) from Huizachal Canyon, Tamaulipas, Mexico. . Journal of Vertebrate Paleontology , 16 : 210 – 221 .
   Web of Science ®Google Scholar
• Rieppel , O. 1992 . The skull in a hatchling of Sphenodon punctatus . Journal of Herpetology , 26 : 80 – 84 .
   Web of Science ®Google Scholar
• Robinson , P. L. 1976 . “ How Sphenodon Uromastix grow their teeth and use them ” . In Morphology and Biology of Reptiles Edited by: Bellairs , A. . and Box , C. B. 43 – 64 . London : Academic Press .
   Google Scholar
• Romer , A. S. 1956 . Osteology of the Reptiles 772 Chicago : TheUniversity of Chicago Press .
   Google Scholar
• Seibertz , E. and Buitron , B. E. 1987 . Paleontología y estratigrafía de los neohibolites del Albiano de Tepexi de Rodríguez, Edo. De Puebla (Cretácico Medio, México). . Sociedad Mexicana de Paleontología , 1 : 285 – 299 .
   Google Scholar
• Simpson , G. G. 1926 . American terrestrial Rhynchocephalia. . American Journal of Science , 5 : 12 – 16 .
   Google Scholar
• Sues , H.-D. and Baird , D. 1993 . A skull of a sphenodontian lepidosaur from the New Heaven Arkose (Upper Triassic: Norian) of Connecticut. . Journal of Vertebrate Paleontology , 13 : 370 – 372 .
   Google Scholar
• Sues , H.-D. , Shubin , N. H. and Olson , P. E. 1994 . A new sphenodontian (Lepidosauria: Rhynchocephalia) from the McCoy Brook Formation (Lower Jurassic) of Nova Scotia, Canada. . Journal of Vertebrate Paleontology , 14 : 327 – 340 .
   Web of Science ®Google Scholar
• Sues , H.-D. and Reiz , R. R. 1995 . First record of the early Mesozoic sphenodontian Clevosaurus (Lepidosauria: Rhynchocephalia) from the southern hemisphere. . Journal of Paleontology , 69 : 123 – 126 .
   Web of Science ®Google Scholar
• Swofford , D. L. 1993 . PAUP: Phylogenetic Analysis Using Parsimony, Version 3.1.1 Champaign, Illinois : Computer program distributed by The Illinois Natural History Survey .
   Google Scholar
• Throckmorton , G. S. , Hopson , J. A. and Parks , P. 1981 . A redescription of Toxolophosaurus cloudi Olson, a Lower Cretaceous herbivorous sphenodontid reptile. . Journal of Paleontology , 55 : 586 – 597 .
   Web of Science ®Google Scholar
• Whiteside , D. I. 1986 . The head skeleton of the Rhaetian sphenodontid Diphydontosaurus avonensis gen. et sp. nov. and the modernizing of a living fossil. Philosophical Transactions of the Royal Society of London . Series B , 312 : 379 – 430 .
   Google Scholar
• Wu , X. 1994 . “ ?Late Triassic-Early Jurassic sphenodontidans (Clevosaurus) from China and the Phylogeny of the Sphenodontida ” . In In the Shadow of the Dinosaurs: Early Mesozoic Tetrapods Edited by: Fraser , N. C. and Sues , H.-D. 38 – 69 . Cambridge and New York : Cambridge University Press .
   Google Scholar
• Zug , G. R. 1993 . Herpetology 527 New York : Academic Press Inc. .
   Google Scholar