Plemmyradytes shintoni, gen. et sp. nov., an Early Permian amphibamid (Temnospondyli: Dissorophoidea) from the Eskridge Formation, Nebraska

LITERATURE CITED

• Anderson , J. S. 2007 . Major Transitions in Vertebrate Evolution Edited by: Anderson , J. and Sues , H.-D. Bloomington : Indiana University Press . in press. Incorporating ontogeny into the matrix: a phylogenetic evaluation of developmental evidence for the origin of modern amphibians;
   Google Scholar
• Anderson , J. S. and Bolt , J. R. 2005 . A nearly complete amphibamid skull from Richard's Spur (Fort Sill), Oklahoma, and its implications for interpretation of dental characters related to the origin of modern amphibians. . Journal of Vertebrate Paleontology , 25 ( 3, supplement ) : 31A
   Web of Science ®Google Scholar
• Anderson , J. S. and Reisz , R. R. 2003 . A new microsaur (Tetrapoda: Lepospondyli) from the Lower Permian of Richards Spur (Fort Sill) Oklahoma. . Canadian Journal of Earth Science , 40 : 499 – 505 .
   Web of Science ®Google Scholar
• Anderson , J. S. , Sumida , S. , Berman , D. , Henrici , A. and Martens , T. 2004 . The dissorophoid temnospondyls from the Early Permian of Bromacher, Germany. . Journal of Vertebrate Paleontology , 24 ( 3, supplement ) : 34A
   Web of Science ®Google Scholar
• Berman , D. S. , Reisz , R. R. and Eberth , D. A. 1985 . Ecolsonia cutlerensis, an Early Permian dissorophid amphibian from the Cutler Formation of north-central New Mexico. New Mexico Bureau of Mines and Mineral Resources Circular 191 31
   Google Scholar
• Bolt , J. R. 1969 . Lissamphibian origins: possible protolissamphibian from the Lower Permian of Oklahoma. . Science , 166 : 888 – 891 .
   PubMed Web of Science ®Google Scholar
• Bolt , J. R. 1974 . A trematopsid skull from the Lower Permian, and analysis of some characters of the dissorophoid (Amphibia: Labyrinthodontia) otic notch. . Fieldiana Geology , 30 : 67 – 79 .
   Google Scholar
• Bolt , J. R. 1977 . Dissorophoid relationships and ontogeny, and the origin of the Lissamphibia. . Journal of Paleontology , 51 : 235 – 249 .
   Web of Science ®Google Scholar
• Boy , J. A. 1972 . [The Branchiosauridae (Amphibia) of the Saar-Pfalz area in the Rotliegendes (Permian, Southwest Germany). . Abhandlungen des hessischen Landesamtes für Bodenforschung , 65 : 1 – 137 . ]. [German]
   Google Scholar
• Boy , J. A. 1980 . [The tetrapod fauna (Amphibia, Reptilia) from the Rotliegendes (Lower Permian) of the Saar-Nahe District (SW-Germany): 2. Tersomius graumanni n. sp. . Mainzer Geowissen-schaftliche Mitteilungen , 8 : 17 – 30 . ]. [German]
   Google Scholar
• Boy , J. A. and Sues , H.-D. 2000 . “ Branchiosaurs: larvae, metamorphosis and heterochrony in temnospondyls and seymouriamorphs; ” . In Amphibian Biology, Volume 4: Paleontology Edited by: Heatwole , H. and Carroll , R. L. 1150 – 1197 . Chipping Norton, , Australia : Surrey Beatty and Sons Pty Ltd .
   Google Scholar
• Carroll , R. L. 1964 . Early evolution of the dissorophid amphibians. . Bulletin of the Museum of Comparative Zoology , 131 : 161 – 250 .
   Google Scholar
• Carroll , R. L. 2001 . The origin and early radiation of terrestrial vertebrates. . Journal of Paleontology , 75 : 1202 – 1213 .
   Web of Science ®Google Scholar
• Carroll , R. L. and Holmes , R. 1980 . The skull and jaw musculature as guides to the ancestry of salamanders. . Zoological Journal of the Linnean Society , 68 : 1 – 40 .
   Web of Science ®Google Scholar
• Chernykh , V. V. and Ritter , S. M. 1997 . Streptognathus (Conodonta) succession at the proposed Carboniferous-Permian boundary stratotype section, Aidaralash Creek, northern Kazakhstan. . Journal of Paleontology , 71 : 459 – 474 .
   Web of Science ®Google Scholar
• Chernykh , V. V. , Ritter , S. M. and Wardlaw , B. R. 1997 . Streptognathus isolatus n. sp. (Conodonta): Proposed index for the Carboniferous-Permian boundary. . Journal of Paleontology , 71 : 162 – 164 .
   Web of Science ®Google Scholar
• Clack , J. A. and Milner , A. R. 1994 . “ Platyrhinops from the Upper Carboniferous of Linton and Nýrany and the family Amphibamidae (Amphibia: Temnospondyli); ” . In New Research on Permo-Carboniferous Faunas Edited by: Heidtke , U. 185 – 191 . Pollichia-buch . 29
   Google Scholar
• Daly , E. 1994 . The Amphibamidae (Amphibia: Temnospondyli), with a description of a new genus from the Upper Pennsylvanian of Kansas. . University of Kansas Museum of Natural History Miscellaneous Publications , 85 : 1 – 59 .
   Google Scholar
• Davydov , V. I. , Glenister , B. F. , Spinosa , C. , Ritter , S. M. , Chernykh , V. V. , Wardlaw , B. R. and Snyder , W. S. 1998 . Proposal of Aidaralash as global stratotype section and point (GSSP) for base of the Permian System. . Episodes , 21 : 11 – 16 .
   Web of Science ®Google Scholar
• Dilkes , D. W. 1990 . A new trematopsid amphibian (Temnospondyli: Dissorophoidea) from the Lower Permian of Texas. . Journal of Vertebrate Paleontology , 10 : 222 – 243 .
   Google Scholar
• Eaton , T. H. 1973 . A Pennsylvanian dissorophoid amphibain from Kansas. Occasional Papers of the Museum of Natural History, The University of Kansas . Lawrence , 14 : 1 – 8 .
   Google Scholar
• Holmes , R. 2000 . “ Paleozoic temnospondyls; ” . In Amphibian Biology, Volume 4: Paleontology Edited by: Heat-wole , H. and Carroll , R. L. 1081 – 1120 . Chipping Norton, , Australia : Surrey Beatty and Sons Pty Ltd .
   Google Scholar
• Holmes , R. B. , Carroll , R. L. and Reisz , 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. . Journal of Vertebrate Paleontology , 18 : 64 – 79 .
   Web of Science ®Google Scholar
• Huttenlocker , A. K. , Pardo , J. D. and Small , B. J. 2005 . An earliest Permian nonmarine vertebrate assemblage from the Eskridge Formation, Nebraska. . New Mexico Museum of Natural History and Science Bulletin , 30 : 133 – 143 .
   Google Scholar
• Joeckel , R. M. 1991 . Paleosol stratigraphy of the Eskridge Formation: Early Permian pedogenesis and climate in southeastern Nebraska. . Journal of Sedimentary Petrology , 61 : 234 – 255 .
   Google Scholar
• Laurin , M. 2004 . The evolution of body size, Cope's Rule and the origin of amniotes. . Systematic Biology , 53 : 594 – 622 .
   PubMed Web of Science ®Google Scholar
• Linnaeus , C. 1758 . Systema Naturae, 10^th edition 824 London : British Museum of Natural History .
   Google Scholar
• Laurin , M. and Reisz , R. R. 1997 . “ A new perspective on tetrapod phylogeny; ” . In Amniote Origins: Completing the Transition to Land Edited by: Sumida , S. S. and Martin , K. L. M. 9 – 59 . San Diego : Academic Press .
   Google Scholar
• McGowan , G. J. 2002 . Albanerpetontid amphibians from the Lower Cretaceous of Spain and Italy: a description and reconsideration of their systematics. . Zoological Journal of the Linnean Society , 135 : 1 – 32 .
   Web of Science ®Google Scholar
• Milner , A. R. 1982 . Small temnospondyl amphibians from the Middle Pennsylvanian of Illinois. . Palaeontology , 25 : 635 – 664 .
   Web of Science ®Google Scholar
• Milner , A. R. 2003 . Longiscitula houghae DeMar, 1966 (Amphibia: Temnospondyli), a junior synonym of Dissorophus multicinctus . Journal of Vertebrate Paleontology , 23 : 941 – 944 .
   Web of Science ®Google Scholar
• Milner , A. R. and Sequeira , S. E.K. 2003 . Revision of the amphibian genus Limnerpeton (Temnospondyli) from the Upper Carboniferous of the Czech Republic. . Acta Palaeontologica Polonica , 48 : 123 – 141 .
   Web of Science ®Google Scholar
• Moodie , R. L. 1909 . A contribution to a monograph of the extinct Amphibia of North America. New forms from the Carboniferous. . Journal of Geology , 17 : 38 – 82 .
   Google Scholar
• Olson , E. C. 1970 . New and little known genera and species of vertebrates from the Lower Permian of Oklahoma. . Fieldiana: Geology , 18 : 359 – 434 .
   Google Scholar
• Reiss , J. O. 2002 . The phylogeny of amphibian metamorphosis. . Zoology , 105 : 85 – 96 .
   PubMed Web of Science ®Google Scholar
• Robinson , J. , Ahlberg , P. E. and Koentges , G. 2005 . The braincase and middle ear region of Dendrerpeton acadianum (Tetrapoda: Temnospondyli). . Zoological Journal of the Linnean Society , 143 : 577 – 597 .
   Web of Science ®Google Scholar
• Romer , A. S. 1947 . Review of the Labyrinthodontia. . Harvard Museum of Comparative Zoology Bulletin , 99 : 1 – 368 .
   Google Scholar
• Ruta , M. , Coates , M. I. and Quicke , D. L. 2003 . Early tetrapod relationships revisited. . Biological Review , 78 : 251 – 345 .
   PubMed Web of Science ®Google Scholar
• Ruta , M. , Jeffery , J. E. and Coates , M. I. 2003 . A supertree of early tetrapods. . Proceedings of the Royal Society of London Series B , 270 : 2507 – 2516 .
   Web of Science ®Google Scholar
• Schoch , R. R. 1997 . Cranial anatomy of the Permian temnospondyl amphibian Zatrachys serratus Cope 1878, and the phylogenetic position of the Zatrachydidae. Neues Jahrbuch für Geologie und Paläontologie . Abhandlungen , 206 : 223 – 248 .
   Google Scholar
• Schoch , R. R. 2002a . The early formation of the skull in extant and Paleozoic amphibians. . Paleobiology , 28 : 278 – 296 .
   Web of Science ®Google Scholar
• Schoch , R. R. 2002b . The evolution of metamorphosis in temnospondyls. . Lethaia , 35 : 309 – 327 .
   Web of Science ®Google Scholar
• Schoch , R. R. and Carroll , R. L. 2003 . Ontogenetic evidence for the Paleozoic ancestry of salamanders. . Evolution and Development , 5 : 314 – 324 .
   PubMed Web of Science ®Google Scholar
• Schoch , R. R. and Hampe , O. 2004 . An eryopid-like temnospondyl from the Lower Rotliegend Meisenheim Formation of the Saar-Nahe Basin. Neues Jahrbuch für Geologie und Paläontologie . Abhandlungen , 232 : 315 – 323 .
   Google Scholar
• Schoch , R. R. and Rubidge , B. S. 2005 . The amphibamid Micropholis from the Lystrosaurus Assemblage Zone of South Africa. . Journal of Vertebrate Paleontology , 25 : 502 – 522 .
   Web of Science ®Google Scholar
• Small , B. J. and Kirkland , J. I. 1998 . Terrestrial vertebrates from near the Pennsylvanian-Permian boundary, southeast Nebraska: a preliminary report. . Journal of Vertebrate Paleontology , 18 ( 3, supplement ) : 78A
   Google Scholar
• Sumida , S. S. , Berman , D. and Martens , T. 1998 . A new trematopid amphibian from the Lower Permian of central Germany. . Palaeontology , 41 : 605 – 629 .
   Web of Science ®Google Scholar
• Swofford , D. 1999 . PAUP: Phylogenetic Analysis Using Parsimony (and other methods) version 4.0 beta 10 Distributed by Sinauer Associates, Inc. .
   Google Scholar
• Trueb , L. and Cloutier , R. 1991 . “ A phylogenetic investigation of the inter- and intrarelationships of the Lissamphibia (Amphibia: Temnospondyli); ” . In Origins of the Higher Groups of Tetrapods: Controversy and Consensus Edited by: Schultze , H.-P. and Trueb , L. 223 – 313 . Ithaca : Cornell University Press .
   Google Scholar
• Vallin , G. and Laurin , M. 2004 . Cranial morphology and affinities of Microbrachis, and a reappraisal of the phylogeny and lifestyle of the first amphibians. . Journal of Vertebrate Paleontology , 24 : 56 – 72 .
   Web of Science ®Google Scholar
• Witzmann , F. and Pfretzschner , H.-U. 2003 . Larval ontogeny of Micromelerpeton credneri (Temnospondyli, Dissorophoidea). . Journal of Vertebrate Paleontology , 23 : 750 – 768 .
   Web of Science ®Google Scholar
• Yates , A. M. and Warren , A. A. 2000 . The phylogeny of the ‘higher’ temnospondyls (Vertebrata: Choanata) and its implications for the monophyly and origins of the Stereospondyli. . Zoological Journal of the Linnean Society , 128 : 77 – 121 .
   Web of Science ®Google Scholar
• Zhao , E. , Jiang , Y. , Hu , G. and Yang , Y. 1988 . Studies on Chinese salamanders 67 Oxford, Ohio : Society for the Study of Amphibians and Reptiles .
   Google Scholar
• von Zittel , K. 1888 . Handbuch der Palaeontologie. 1 München, und Leipzig, , Germany : Abtheilung-Palaeozoologie Band III. Amphibia. Oldenbourg .
   Google Scholar