The anatomy of Askeptosaurus italicus from the Middle Triassic of Monte San Giorgio and the interrelationships of thalattosaurs (Reptilia, Diapsida)

Canadian Journal of Earth Sciences

Volumn 42, Issue 7, 2005, Pages 1347-1367

  Müller, Johannes ^a  

^a UNIVERSITY OF TORONTO   (Canada)

Author keywords

[No Author keywords available]

Indexed keywords

BIOLOGICAL MATERIALS; BIOLOGICAL MATERIALS PRESERVATION; BIOLOGY; BONE; BRAIN;

ASKEPTOSAURUS ITALICUS; MIDDLE TRIASSIC; NEUROCRANIUM; PALATE;

GEOCHRONOLOGY;

ANATOMY; REPTILE; TRIASSIC;

REPTILIA; SAURIA; XINPUSAURUS;

EID: 30444452654     PISSN: 00084077     EISSN: None     Source Type: Journal    
DOI: 10.1139/e05-030     Document Type: Article

References (40)

1. Carroll, R.L. 1981. Plesiosaur ancestors from the Upper Permian of Madagascar. Philosphical Transactions of the Royal Society of London B, 293: 315-383.
2. Dalla Vecchia, F.M. 1993. Reptile remains from the Middle-Upper Triassic of the Carnic and Julian Alps (Friuli-Venezia Giulia, northeastern Italy). Gortania-Atti di Museo Friuli di Storia Naturale, 15: 49-66.
3. Edmund, G. 1969. Dentition. In Biology of the Reptilia, Vol. 1. Edited by C. Gans and T. Parsons. Academic Press, London, England, pp. 117-200.
4. Evans, S.E. 1986. The braincase of Prolacerta broomi (Reptilia, Triassic). Neues Jahrbuch für Geologic und Paläontologie Abhandlungen, 173: 181-200.
5. Evans, S.E. 1987. The braincase of Youngina capensis (Reptilia: Diapsida; Permian). Neues Jahrbuch für Geologie and Paläontologie Monatshefte, 1987: 181-200.
6. Gower, D.J., and Weber, E. 1998. The braincase of Euparkeria, and the evolutionary relationships of birds and crocodilians. Biological Reviews, 73: 367-411.
7. Jiang, D.-Y., Maisch, M.W., Sun, Y.-L., Matzke, A.T., and Hao, W.-C. 2004. A new species of Xinpusaurus (Thalattosauria) from the Upper Triassic of China. Journal of Vertebrate Paleontology, 24: 80-88.
8. Kuhn, E. 1952. Die Triasfauna der Tessiner Kalkalpen. XVII: Askeptosaurus italicus Nopsca. Schweizer Paläontologische Abhandlungen, 69: 1-73.
9. Kuhn-Schnyder, E. 1960. Über einen Schultergürtel von Askeptosaurus italicus Nopsca aus der anisischen Stufe der Trias des Monte San Giorgio (Kt. Tessin, Schweiz). Eclogae Geologicae Helvetiae, 53: 805-810.
10. Kuhn-Schnyder, E. 1971. Über einen Schädel von Askeptosaurus italicus Nopsea aus der mittleren Trias des Monte San Giorgio (Kt. Tessin, Schweiz). Abhandlungen des Hessischen Landesamts für Bodenforschung, 60: 89-98.
11. Liu, J., and Rieppel, O. 2001. A second thalattosaur species from the Triassic of Guizhou, China. Vertebrata Palasiatica, 39: 77-87.
12. McGowan, C., and Motani, R. 2003. Handbook of Paleoherpetology, part 8. Ichthyopterygia. Dr. Friedrich Pfeil, Munich, Germany.
13. Merriam, J.C. 1904. A new marine reptile from the Triassic of California. Bulletin of the Department of Geology at the University of California, 3: 419-421.
14. Merriam, J.C. 1905. The Thalattosauria: a group of marine reptiles from the Triassic of California. Memoirs of the California Academy of Sciences, 5, 52 p.
15. Merriam, J.C. 1908. Notes on the osteology of the thalattosaurian genus Nectosaurus. Bulletin of the Department of Geology at the University of California, 5: 217-223.
16. Müller, J. 2003. Early loss and multiple return of the lower temporal arcade in diapsid reptiles. Naturwissenschaften, 90: 473-476.
17. Müller, J. 2004. The relationships among diapsid reptiles and the influence of taxon selection. In Recent advances in the origin and early radiation of vertebrates. Edited by G. Arratia, R. Cloutier, and V.H. Wilson. Dr. Friedrich Pfeil, Munich, Germany, pp. 379-408.
18. Müller, J., Renesto, S., and Evans, S.E. 2005. The marine diapsid reptile Endennasaurus (Reptilia: Thalattosauriformes) from the Late Triassic of Italy. Palaeontology, 48: 15-30.
19. Nicholls, E.L. 1999. A reexamination of Thalattosaurus and Nectosaurus and the relationships of the Thalattosauria (Reptilia: Diapsida). PaleoBios, 19: 1-29.
20. Nicholls, E.L., and Brinkman, D. 1993. New thalattosaurs (Reptilia: Diapsida) from the Triassic Sulphur formation of Wapiti Lake, British Columbia. Journal of Paleontology, 67: 263-278.
21. Nopsca, F. von 1925. Askeptosaurus, ein neues Reptil aus der Trias von Besano. Centralblätter für Mineralogie, Geologic und Paläontologie, 1925B: 265-267.
22. Pritchard, P.C.H. 1979. Encyclopedia of turtles. T.F.H. Publications, N.J.
23. Peyer, B. 1936a. Die Triasfauna der Tessiner Kalkalpen. X Clarazia schinzi nov. gen. nov. sp. Abhandlungen der schweizerischen Paläontologischen Gesellschaft, 57, 61 p.
24. Peyer, B. 1936b. Die Triasfauna der Tessiner Kalkalpen. XI. Hescheleria rübeli nov. gen. nov. sp. Abhandlungen der schweizerischen Paläontologischen Gesellsehaft, 58, 48 p.
25. Reisz, R.R. 1981. A diapsid reptile from the Pennsylvanian of Kansas. Special Papers of the Museum of Natural History of the University of Kansas, 7, 74 p.
26. Renesto, S. 1992. The anatomy and relationships of Endennasaurus acutirostris (Reptilia, Neodiapsida) from the Norian (Late Triassic) of Lombardy. Rivista Italiana di Paleontologia e Stratigrafia, 97: 409-430.
27. Rieppel, O. 1979. The skull of the Upper Jurassic cryptodire turtle Thalassemys, with a reconsideration of the chelonian braincase. Palaeontographica A, 171: 105-140.
28. Rieppel, O. 1987. Clarazia and Hescheleria: a re-investigation of two problematical reptiles from the Middle Triassic of Monte San Giorgio (Switzerland). Palaeontographica A, 195: 101-129.
29. Rieppel, O. 1998. The systematic status of Hanosaurus hupehensis (Reptilia, Sauropterygia) from the Triassic of China. Journal of Vertebrate Paleontology, 18: 545-557.
30. Rieppel, O. 2000. Handbook of Paleoherpetology, part 12A. Sauropterygia 1. Placodontia, Pachypleurosauria, Nothosauroidea, Pistosauroidea. Dr. Friedrich Pfeil, Munich.
31. Rieppel, O., and Hagdorn, H. 1998. Fossil reptiles from the Spanish Muschelkalk (Montral and Alcover, Province Tarragona). Historical Biology, 13: 77-97.
32. Rieppel, O., Liu, J., and Bucher, H. 2000. The first record of a thalattosaur reptile from the Late Triassic of Southern China (Guizhou Province, PR China). Journal of Vertebrate Paleontology, 20: 507-515.
33. Romer, A.S. 1956. Osteology of the Reptiles. University of Chicago Press, Chicago, III.
34. Sander, P.M. 2000. Ichthyosauria: their diversity, distribution, and phylogeny. Paläntologische Zeitschrift, 74: 1-35.
35. Sander, P.M., Rieppel, O., and Bucher, H. 1994. New marine vertebrate fauna from the Middle Triassic of Nevada. Journal of Paleontology, 68: 676-680.
36. Sander, P.M., Rieppel, O., and Bucher, H. 1997. A new pistosaurid (Reptilia: Sauropterygia) from the Middle Triassic of Nevada and its implications for the origin of the plesiosaurs. Journal of Vertebrate Paleontology, 17: 526-533.
37. Scotese, C.R., and Golonka, J. 1992. Paleogeographic Atlas, PALEOMAP Progress Report 20-0692. University of Texas, Arlington, Tex.
38. Storrs, G.W. 1991. Note on a second occurrence of thalattosaur remains (Reptilia: Neodiapsida) in British Columbia. Canadian Journal of Earth Sciences, 28: 2065-2068.
39. Strong, E.E., and Lipscomb, D. 1999. Character coding and inapplicable data. Cladistics, 15: 363-371.
40. Swofford, D.L. 2001. Phylogenetic Analysis Using Parsimony* 40b8. Sinauer Associates Inc., Sunderland.