Phylogeny of the Ichthyopterygia

Journal of Vertebrate Paleontology

Volumn 19, Issue 3, 1999, Pages 473-496

  Motani, Ryosuke ^a  

^a UNIVERSITY OF CALIFORNIA   (United States)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0033239428     PISSN: 02724634     EISSN: 19372809     Source Type: Journal    
DOI: 10.1080/02724634.1999.10011160     Document Type: Article

References (137)

1. Abel, O. 1909. Cetaceenstudien. 1. Mitteilung: Das Skelett von Eurhinodelphis cocheteuxi aus dem Obermiozän von Antwerpen. K. Akademie der Wissenschaften, Wien. Mathematisch-naturwissen- schaftliche Klasse; Sitzungsberichte 118:241-253.
2. Andrews, C. W. 1910. A descriptive catalogue of the marine reptiles of the Oxford Clay. Based on the Leeds collection in the British Museum (Natural History), London, Part I. Printed for the British Museum, London, 205 pp.
3. Appleby, R. M. 1956. The osteology and taxonomy of the fossil reptile Ophthalmosaurus. Proceedings of the Zoological Society of London 126:403-447.
4. Appleby, R. M. 1979. The affinities of Liassic and later ichthyosaurs. Palaeontology 22:921-946.
5. Arkhangelsky, M. S. 1997. On a new ichthyosaurian genus from the Lower Volgian Substage of the Saratov, Volga region. Paleontologicheskii Zhurnal 31:87-91.
6. Arkhangelsky, M. S. 1998. On the ichthyosaurian fossils from the Volgian Stage of the Saratov region. Paleontologicheskii Zhurnal 32:87-91.
7. Bardet, N. 1992. Stratigraphie evidence for the extinction of the ichthyosaurs. Terra Nova 4:649-656.
8. Bassani, F. 1886. Sui fossili e sull’età degli schisti bituminosi triasici di Besano in Lombardia.—Communicazione preliminare. Atti della Società Italiana di Scienze Naturale del Museo Civili de Storia Naturali 29:15-17.
9. Baur, G. 1887. Uber die Ursprung der Extremitäten der Ichthyopterygia. Berichte über die Versammlungen des Oberrheinischen Vereines 20:17-20.
10. Blainville, H. M. D. de. 1835. Description de quelques espéces de reptiles de la Californie. Nouvelles Annales du Muséum d’Histoire Naturelle, Paris 4:233-296.
11. Boulenger, G. A. 1904. A remarkable ichthyosaurian right anterior paddle. Proceedings of the Zoological Society of London 1:424-426.
12. Brinkman, D. B., Zhao X., and E. L. Nicholls. 1992. A primitive ichthyosaur from the Lower Triassic of British Columbia, Canada. Palaeontology 35:465-474.
13. Brinkmann, W. 1998. Sangiorgiosaurus n. g.—eine neue Mixosaurier Gattung (Mixosauridae, Ichthyosauria) mit Quetschzähnen aus der Grenzbitumenzone (Mitteltrias) des Monte San Giorgio (Schweiz, Kanton Tessin). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 207:125-144.
14. Broili, F. 1907. Ein neuer Ichthyosaurus aus der norddeutschen Kreide. Palaeontographica. 56:139-162.
15. Caldwell, M. W. 1996. Ichthyosauria: A preliminary phylogenetic analysis of diapsid affinities. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 200:361-386.
16. Caldwell, M. W. 1997. Modified perichondral ossification and the evolution of paddle-like limbs in ichthyosaurs and plesiosaurs. Journal of Vertebrate Paleontology 17:534-547.
17. Callaway, J. M. 1989. Systematics, phylogeny, and ancestry of Triassic ichthyosaurs. Ph.D. dissertation, University of Rochester, Rochester, 204 pp.
18. Callaway, J. M. and J. A. Massare. 1989a. Shastasaurus altispinus (Ichthyosauria, Shastasauridae) from the Upper Triassic of the El Antimonio district, Northwestern Sonora, Mexico. Journal of Paleontology 63: 930-939.
19. Callaway, J. M. and 1989b. Geographic and Stratigraphie Distribution of the Triassic Ichthyosauria (Reptilia; Diapsida). Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 178:37-58.
20. Camp, C. L. 1976. Vorläufige Mittelung über große Ichthyosaurier aus der oberen Trias von Nevada. Österische Akademie der Wissenschaften, Mathematisch-naturwissenschaftliche Klasse, Sitzungsberichte, Abteilung 1, 185:125-134. 1980. Large ichthyosaurs from the Upper Triassic of Nevada. Palaeontographica A 170:139-200.
21. Carroll, R. L. 1981. Plesiosaur ancestors from the Upper Permian of Madagascar. Philosophical Transactions of the Royal Society of London, B 293:315-383.
22. Carroll, R. L. and 1991. Hupehsuchus, an enigmatic aquatic reptile from the Triassic of China, and the problem of establishing relationships. Philosophical Transactions of the Royal Society of London B: 331:131-153.
23. Carter, J. 1846. Notice of the jaws of an Ichthyosaurus from the Chalk in the neighbourhood of Cambridge. Report of the British Association for the Advancement of Science 25:60.
24. Conybeare, W. D. 1822. Additional notices on the fossil genera, Ichthyosaurus and Plesiosaurus. Transactions of the Geological Society of London, Series 2, 1:103-123.
25. Currie, P. J. 1981. Hovasaurus boulei, an aquatic eosuchian from the Upper Permian of Madagascar. Paleontologia africana 24:99-168.
26. Dal Sasso, C., and G. Pinna. 1996. Besanosaurus leptorhynchus n. gen. n. sp., a new shastasaurid ichthyosaur from the Middle Triassic of Besano (Lombardy, N. Italy). Paleontologia Lombarda, Nouva Serie 4:3-23.
27. de la Beche, H. T., and W. E. Conybeare. 1821. Notice of the discovery of a new fossil animal, forming a link between Ichthyosaurus and crocodile, together with general remarks on the osteology of Ichthyosaurus. Transactions of the Geological Society of London, Ser. 1, 5:559-594.
28. Dong, Z.-M. 1972. [An ichthyosaur fossil from the Qomolangma Feng region]; pp. 7-10. in C. C.Young and Z.-M. Dong (eds.), [Aquatic reptiles from the Triassic of China]. Academia Sinica, Institute of Vertebrate Paleontology and Palaeoanthropology, Memoir 9, Peking. [Chinese]
29. Efimov, V. M. 1997. A new genus of ichthyosaurs from the Late Cretaceous of the Ulyanovsk Volga region. Paleontologicheskii Zhurnal 31:77-82.
30. Efimov, V. M. 1998. An ichthyosaur, Otschevia pseudoscythica gen. et sp. nov. from the Upper Jurassic strata of the Ulyanovsk region (Volga region). Paleontologicheskii Zhurnal 32:82-86.
31. Fernández, M. 1994. A new long-snouted ichthyosaur from the Early Bajocian of Neuquen Basin (Argentina). Ameghiniana 31:291-297.
32. Fernández, M. 1997. A new ichthyosaur from the Tithonian (Late Jurassic) of the Neuquén Basin, Northwestern Patagonia, Argentina. Journal of Paleontology 71:479-484.
33. Gaudry, M. A. 1892. LIchthyosaurus burgundiae. Bulletin de la Société d’Histoire Naturelle d’Autun 5:365-372.
34. Godefroit, P. 1993. The skull of Stenopterygius longifrons (Owen, 1881). Revue de Paléobiologie, Genève, Vol. Spéciale 7:67-84.
35. Harland, W. B. 1997. The Geology of Svalbard. Geological Society of London, Memoir 17:1-521.
36. R. L. Armstrong, A. V. Cox, L. E. Craig, A. G. Smith, and D. G. Smith. 1990. A Geological Time Scale 1989. Cambridge University Press, Cambridge, 263 pp.
37. Hendy, M. D., and D. Penny. 1982. Branch and bound algorithms to determine minimal evolutionary trees. Mathematical Biosciences 59:277-290.
38. Huene, F. von. 1916. Beiträge zur Kenntnis der Ichthyosaurier im deutschen Muschelkalk. Palaeontographica, 62:1-68.
39. Huene, F. von. 1922. Die Ichthyosaurier des Lias und ihre Zusammenhänge. 4. Jahresversammlung der palaeontologishcen Gesellschaft; Verlag von Gebrüder Borntraeger, Berlin, 114 pp.
40. Huene, F. von. 1925. Shastasaurus-Reste in der alpinen Trias. Centralblatt für Mineralogie, Geologie, und Paläontologie 1925:412-417.
41. Huene, F. von. 1926. Neue Ichthyosaurierfunde aus dem schwäbischen Lias. Neues Jahrbuch für Mineralogie, Geologie, und Paläontologie, B 55:66-86.
42. Huene, F. von. 1927. Beitrag zur Kenntnis mariner mesozoischer Wirbeltiere in Argentinien. Centralblatt für Mineralogie, Geologie, und Paläontologie 1926:22-29.
43. Huene, F. von. 1951. Eine neue Ichthyosaurier-Gattung der mitteieren Trias. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 94: 80-92.
44. Huene, F. von. 1956. Paläontologie und Phylogenie der niederen Tetrapoden: Gustav Fischer Verlag, Jena, 716 pp.
45. Hulke, J. W. 1871. Note on Ichthyosaurus (enthekiodon) from Kimmeridge Bay, Dorset. Quarterly Journal of the Geological Society of London 27:440-441.
46. Hulke, J. W. 1873. Memorandum on some fossil vertebrate remains collected by the Swedish expedition to Spitzbergen in 1864 and 1868. Bihang till K. Svenska Vetenskapskademiens Handlinger, 1, Afdelning IV, 9:1-11.
47. Jabionski, D., D. H. Erwin, and J. H. Lipps 1996. Appendix; pp. 461-464. in D. D. Jablonski, H. Erwin, and J. H. Lipps (eds.), Evolu- tionary Paleobiology. University of Chicago Press, Chicago and London.
48. Jaekel, O. 1904. Ein neue Darstellung von Ichthyosaurus. Zeitschrift der Deutschen geologischen Gesellschaft, Berlin 56:26-34.
49. Kirton, A. M. 1983. A review of British Upper Jurassic ichthyosaurs. Ph.D. dissertation, University of Newcastle-upon-Tyne, 239 pp.
50. Kuhn, O. 1934. Ichthyosauria. in Quenstedt, W. (ed.), Fossilium Catal- ogus. 1: Animalia. Pars 63. Berlin, Junk, 75 pp.
51. Kuhn, O. 1946. Ein Skelett von Ichthyosaurus (Platypterygius) hercynicus n. sp. aus dem Aptium von Gitter. Ber. Naturf. Geschichte Bamberg. 29:69-82.
52. Leidy, 1868. Notice of some reptilian remains from Nevada. Proceed- ings of the Philadelphia Academy of Science 20:177-178.
53. Lydekker, R. 1888. Note of the classification of the Ichthyopterygia (with a notice of two new species). Geological Magazine 3:309- 314.
54. Lydekker, R. 1889. Catalogue of the fossil Reptilia and Amphibia in the Brit- ish Museum (Natural History). Part II. Containing the orders Ichth- yopterygia and Sauropterygia. British Museum, London, 307 pp.
55. Maddison, W. P., and D. R. Maddison. 1992. MacClade: Analysis of phylogeny and character evolution. Version 3.0. Sinauer Associ- ates, Sunderland, Massachusetts.
56. Maisch, M. W. 1998. A new ichthyosaur genus from the Posidonia Shale (Lower Toarcian, Jurassic) of Holzmaden, SW-Germany with comments on the phylogeny of post-Triassic ichthyosaurs. Neues Jahrbuch für Geologie und Paläontologie, Abhandlungen 209:47- 78.
57. Maisch, M. W. and A. T. Matzke. 1997. Mikadocephalus gracilirostris n. gen., n. sp., a new ichthyosaur from the Granzbitumenzone (Anisian- Ladinian) of Monte San Giorgio (Switzerland). Paläontologische Zeitschrift 71:267-289.
58. Maisch, M. W. and 1998a. Observations on Triassic ichthyosaurs. Part II: A new ichthyosaur with palatal teeth from Monte San Giorgio. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1998: 26-41.
59. Maisch, M. W. and 1998b. Observations on Triassic ichthyosaurs. Part III: A crested predatory moxosaurid from the Middle Triassic of the Germanic Basin. Neues Jahrbuch für Geologie und Paläonto- logie, Abhandlungen 209:105-134.
60. Manteil, G. A. 1851. Petrifactions and their teachings; or, a hand-book to the gallery of organic remains of the British Museum. H. G. Bohn, London, 496 pp.
61. Marsh, O. C. 1879. A new order of extinct reptiles (Sauranodonta) from the Jurassic formation of the Rocky Mountains. American Journal of Science 3:85-86.
62. Massare, J. A. 1987. Tooth morphology and prey preference of Meso- zoic marine reptiles. Journal of Vertebrate Paleontology 7:121-137.
63. Massare, J. A. and J. M. Callaway. 1990. The affinities and ecology of Triassic ichthyosaurs. Geological Society of America Bulletin 102:409- 416.
64. Mazin, J.-M. 1981a. Grippia longirostris Wiman, 1929, un Ichthyopter- ygia primitif du Trias inférieur du Spitsberg. Bulletin du Muséum National d’Histoire Naturelle, 4:317-340.
65. Mazin, J.-M. 1981b Svalbardosaurus crassidens n.g. n.sp., un ichthyoptery-gian nouveau du Spathien (Trias inférieur) du Spitsberg. Comptes Rendus de l’Académie des Sciences, Série II 293:203-205.
66. Mazin, J.-M. 1982. Affinités et phylogénie des Ichthyopterygia. Geobios, mé- moire spécial 6:85-98.
67. Mazin, J.-M. 1983. Omphalosaurus nisseri (Wiman 1910), un ichthyoptéry-gien à denture broyeuse du Trias moyen du Spitsberg. Bulletin du Muséum National d’Histoire Naturelle, ser 4, 5, C, 2:243-263.
68. V. Suteethorn, E. Buffetaut, J.-J. Jaeger, and R. Helmcke-In-gavat. 1991. Preliminary description of Thaisaurus chonglakmanii n. g., n. sp., a new ichthyopterygian (Reptilia) from the Early Tri- assic of Thailand. Comptes Rendus de l’Académie des Sciences, Série II 313:1207-1212.
69. McGowan, C. 1972a. Evolutionary trends in longipinnate ichthyosaurs with particular reference to the skull and forefin. Life Science Con- tributions, Royal Ontario Museum 83:1-38.
70. McGowan, C. 1972b. The systematics of Cretaceous ichthyosaurs with partic- ular reference to the material from North America. Contributions to Geology, University of Wyoming 11:9-29.
71. McGowan, C. 1973. The cranial morphology of the Lower Liassic Latipinnate ichthyosaurs of England. Bulletin of the British Museum (Natural History), Geology 24:1-109.
72. McGowan, C. 1974a. A revision of the longipinnate ichthyosaurs of the Lower Jurassic of England, with descriptions of two new species (Reptilia: Ichthyosauria). Life Science Contributions, Royal Ontario Museum 97:1-37.
73. McGowan, C. 1974b. A revision of the latipinnate ichthyosaurs of the Lower Jurassic of England (Reptilia: Ichthyosauria). Life Science Contri- butions, Royal Ontario Museum 100:1-30.
74. McGowan, C. 1976. The description and phenetic relationships of a new ich- thyosaur genus from the Upper Jurassic of England. Canadian Jour- nal of Earth Sciences 13:668-683.
75. McGowan, C. 1979. A revision of the Lower Jurassic ichthyosaurs of Ger- many with descriptions of two new species. Palaeontographica A 166:93-135.
76. McGowan, C. 1986. A putative ancestor for the swordfish-like ichthyosaur Eurhinosaurus. Nature 322:454-456.
77. McGowan, C.1989. Leptopterygius tenuirostris and other long-snouted ich- thyosaurs from the English Lower Lias. Palaeontology 32:409- 427.
78. McGowan, C. 1991. Dinosaurs, Spitfires, and Sea Dragons. Harvard Univer- sity Press, Cambridge and London, 365 pp.
79. McGowan, C. 1993. A new species of large, long-snouted ichthyosaur from the English Lower Lias. Canadian Journal of Earth Sciences 30: 1197-1204.
80. McGowan, C. 1994a. A new species of Shastasaurus (Reptilia: Ichthyosauria) from the Triassic of British Columbia: the most complete exemplar of the genus. Journal of Vertebrate Paleontology 14:168-179.
81. McGowan, C. 1994b. Temnodontosaurus risor is a juvenile of T. platyodon (Reptilia, Ichthyosauria). Journal of Vertebrate Paleontology 14: 472-479.
82. McGowan, C. 1995a. A remarkable small ichthyosaur from the Upper Triassic of British Columbia, representing a new genus and species. Cana- dian Journal of Earth Sciences 32:292-303.
83. McGowan, C. 1995b. The taxonomic status of the Upper Liassic Ichthyosaur Eurhinosaurus longirostris. Palaeontology 37:747-753.
84. McGowan, C. 1996a. A new and typically Jurassic ichthyosaur from the Upper Triassic of British Columbia. Canadian Journal of Earth Sciences 33:24-32.
85. McGowan, C. 1996b. The taxonomic status of Leptopterygius Huene, 1922 (Reptilia, Ichthyosauria). Canadian Journal of Earth Sciences 33: 439-443.
86. McGowan, C. 1997a. The taxonomic status of the Late Jurassic ichthyosaur Grendelius mordax: A reliminary report. Journal of Vertebrate Paleontology 17:428-430.
87. McGowan, C. 1997b. A transitional ichthyosaur fauna., pp. 61-80. in J. M. Callaway and E. L. Nicholls (eds.), Ancient Marine Reptiles. Ac- ademic Press, London and New York.
88. McGowan, C. and R. Motani. In press. A reinterpretation of the Upper Triassic ichthyosaur, Shonisaurus. Journal of Vertebrate Paleontology.
89. Merriam, J. C. 1895. On some reptilian remains from the Triassic of northern California. American Journal of Science Ser. 3, 50:55-57.
90. Merriam, J. C. 1902. Triassic Ichthyopterygia from California and Nevada. University of California Publications, Bulletin of the Department of Geology 3:63-108.
91. Merriam, J. C. 1903. New Ichthyosauria from the Upper Triassic of California. University of California Publications, Bulletin of the Department of Geology 3:249-263.
92. Merriam, J. C. 1905. The types of limb-structure in the Triassic Ichthyosauria. American Journal of Science 19:23-30.
93. Merriam, J. C. 1908. Triassic Ichthyosauria, with special reference to the American forms. Memoirs of the University of California 1:1-196.
94. Merriam, J. C. 1910. The skull and dentition of a primitive ichthyosaurian from the Middle Triassic. University of California Publications, Bulletin of the Department of Geology 5:381-390.
95. Merriam, J. C. 1911. Notes on the relationships of the marine saurian fauna described from the Triassic of Spitzbergen by Wiman. University of California Publications, Bulletin of the Department of Geology 6:317-327.
96. Motani, R. 1996. Redescription of the dental features of an Early Tri- assic ichthyosaur Utatsusaurus hataii. Journal of Vertebrate Pale- ontology 16:396-402.
97. Motani, R. 1997a. Phylogeny of the Ichthyosauria (Amniota: Reptilia) with special reference to Triassic forms. Ph.D. dissertation, University of Toronto, Toronto, 384 pp.
98. Motani, R. 1997b. Redescription of the dentition of Grippia longirostris (Ichthyosauria) with a comparison with Utatsusaurus hataii. Jour- nal of Vertebrate Paleontology 17:39-44.
99. Motani, R. 1997c. Temporal and spatial distribution of tooth implantation in ichthyosaurs; pp. 81-103 in J. M. Callaway and E. L. Nicholls (eds.), Ancient Marine Reptiles. Academic Press, London and New York.
100. Motani, R. 1997d. New information on the forefin of Utatsusaurus hataii (Ichthyosauria). Journal of Paleontology 71:475-479.
101. Motani, R. 1997e. New technique for retrodeforming tectonically deformed fossils, with an example for ichthyosaurian specimens. Lethaia 30: 221-228.
102. Motani, R.1998. First complete forefin of the ichthyosaur Grippia longi- rostris discovered from the Triassic of Spitsbergen. Palaeontology 41:591-600.
103. Motani, R. 1999. On the evolution and homology of ichthyosaurian fore-fins. Journal of Vertebrate Paleontology.
104. Motani, R. and You H. 1998a. The forefin of Chensaurus chaoxianensis (Ichthyosauria) shows delayed mesopodial ossification. Journal of Paleontology 72:133-136.
105. Motani, R. and 1998b. Taxonomy and limb ontogeny of Chaohu-saurus geishanensis (Ichthyosauria), with a note on the allometric equation. Journal of Vertebrate Paleontology 18:533-540.
106. Motani, R. and C. McGowan. 1996. Eel-like swimming in the ear- liest ichthyosaurs. Nature 382:347-348.
107. N. Minoura, and T. Ando. 1998. Ichthyosaurian relationships illuminated by new primitive skeletons from Japan. Nature 393: 255-257.
108. Nace, R. L. 1939. A new ichthyosaur from the Upper Cretaceous Mow- ry Formation of Wyoming. American Journal of Science 237:673- 686.
109. Nicholls, E. L., and D. B. Brinkman. 1993. A new specimen of Utat- susaurus (Reptilia: Ichthyosauria) from the Lower Triassic Sulphur Mountain Formation of British Columbia. Canadian Journal of Earth Science 30:486-490.
110. Nicholls, E. L., and D. B. Brinkman. 1995. A new ichthyosaur from the Triassic of Sul- phur Mountain Formation of British Columbia; pp. 521-535 in W. A. S. Sarjeant (ed.), Vertebrate Fossils and the Evolution of Sci- entific Concepts. Gordon and Breach, Switzerland.
111. Nicholls, E. L., and D. B. Brinkman. and J. M. Callaway. In press. New material of Phal-arodon (Reptilia, Ichthyosauria) from the Triassic of British Co- lumbia and its bearing on the interrelationships of mixosaurs. Pa- laeontographica.
112. Ochev, V. G., and V. M. Yefimov. 1985. A new genus of ichthyosaur from the Ul’Yanovsk area of the Povolzh’Ye region. Paleontolo- gicheskii Zhurnal 19-85:76-80.
113. Osborn, H. F. 1903. The reptilian subclass Diapsida and Synapsida and the early history of the Diaptosauria. Memoirs of the American Museum of Natural History 1:449-507.
114. Owen, R. 1840. Report on British fossil reptiles. Report of the British Association for the Advancement of Science 9:43-126.
115. Owen, R. 1881. Ichthyopterygia; pp. 81-134 in R. Owen (ed.), A Mono- graph of the Fossil Reptilia of the Liassic Formations. Serial Pub- lication 3. Printed for the Palaeontographical Society. London.
116. Peyer, B. 1968. Comparative Odontology. University of Chicago Press, Chicago and London, 347 pp.
117. Quenstedt, F. A. 1852. Handbuch der Petrefactenkunde. Tübingen, 792 pp. 1958. Der Jura. Tübingen, 842 pp.
118. Reisz, R. R. 1981 A diapsid reptile from the Pennsylvanian of Kansas. Special Publication of the Museum of Natural History, University of Kansas 7:1-74.
119. Repossi, E. 1902. Il mixosauro degli strati Triasici di Besano in Lom- bardia. Atti della Società Italiana di Scienze Naturali 41:61-72.
120. Römer, A. S. 1956. Osteology of the Reptiles. University of Chicago Press, Chicago and London, 772 pp.
121. Römer, A. S. 1968. An ichthyosaur skull from the Cretaceous of Wyoming. Contributions to Geology, University of Wyoming 7:27-41.
122. Sander, P. M. 1989. The large ichthyosaur Cymbospondylus buchseri, sp. nov., from the Middle Triassic of Monte San Giorgio (Switzer- land), with a survey of the genus in Europe. Journal of Vertebrate Paleontology 9:163-173.
123. Sander, P. M. 1997. The paleobiogeography of Shastasaurus; pp. 317-43. In J. M. Callaway and E. L. Nicholls (eds.), Ancient Marine Reptiles. Academic Press, London and New York.
124. J. M. Callaway and E. L. Nicholls (eds.), and C. Faber. 1998. New finds of Omphalosaurus and a review of Triassic ichthyosaur paleobiogeography. Paläontologische Zeit- schrift 72:149-162.
125. Seeley, H. G. 1874. On the pectoral arch and fore limb of Ophthal- mosaurus, a new ichthyosaurian genus from the Oxford Clay. Quar- terly Journal of the Geological Society of London 30:696-707.
126. Shikama, T., T. Kamei, and M. Murata. 1978. Early Triassic Ichthyo- saurus, Utatsusaurus hataii Gen. et Sp. Nov., from the Kitakami Massif, Northeast Japan. Science Reports of the Tohoku University, Sendai, Second Series (Geology) 48:77-97.
127. Swofford, D. L. 1998. PAUP*. Phylogenetic Analysis Using Parsimony (*and Other Methods). Version 4. Sinauer Associates, Sunderland, Massachusetts.
128. Tarsitano, S. 1983. A case for the diapsid origin of ichthyosaurs. Neues Jahrbuch für Geologie und Paläontologie, Monatshefte 1983:59- 64.
129. Wade, M. 1990. A review of the Australian Cretaceous longipinnate ichthyosaur Platypterygius (Ichthyosauria, Ichthyopterygia). Mem- oirs of the Queensland Museum 28:115-137.
130. Wiman, C. 1910. Ichthyosaurier aus der Trias Spitzbergens. Bulletin of the Geological Institution of the University of Upsala 10:124-148.
131. Wiman, C. 1912. Über Mixosaurus cornalianus Bass sp. Bulletin of the Geological Institution of the University of Upsala 11:230-241.
132. Wiman, C. 1916. Notes on the marine Triassic reptile fauna of Spitzbergen. University of California Publications, Bulletin of the Department of Geology 10:63-73.
133. Wiman, C. 1929. Eine neue Reptilien-Ordnung aus der Trias Spitzbergens. Bulletin of the Geological Institution of the University of Upsala 22:183-196.
134. Wiman, C. 1933. Über Grippia longirostris. Nova Acta Regiae Societatis Scientiarum Upsaliensis 9(4): 1-19.
135. Wurstemberger, A. R. C. von. 1876. Ueber Lias Epsilon. Jahreshefte des Vereins für vaterländische Naturkunde in Württemberg 32:193- 233.
136. Young, C.C. 1965. On a revised determination of a fossil reptile from Jenhui, Kweichou with note on a new ichthyosaur probably from China. Vertebrata PalAsiatica 9:368-375.
137. Young, C.C. and Z.-M. Dong. 1972. [Chaohusaurus geishanensis from An- hui Province], pp. 11-14. in C. C. Young and Z.-M. Dong (eds.), [Aquatic reptiles from the Triassic of China]. Academia Sinica, Institute of Vertebrate Paleontology and Palaeoanthropology, Mem- oir 9, Peking. [Chinese]