Mikko's Phylogeny Archive

†Thalattosauriformes – thalattosaurs

After Nicholls, 1999, Jiang, Maisch, Sun, Matzke & Hao, 2004, and Müller, 2005

<==o †Thalattosauriformes Merriam, 1905 sensu Nicholls, 1999
   |--o †Askeptosauroidea
   |  |-- †Endennasaurus acutirostris Renesto, 1984 [Endennasauridae]
   |  `--o †Askeptosauridae
   |     |-- †Askeptosaurus italicus Nopcsa, 1925
   |     `--o †Anshunsaurus Liu, 1999
   |        |-- †A. sp. Rieppel, Li & Liu
   |        `-- †A. huangguoshuensis Liu, 1999
   `--o Thalattosauria Merriam, 1905 sensu Nicholls, 1999 [?Thalattosauroidea Nopcsa, 1928 sensu Rieppel, Liu & Bucher, 2000]
      |--+-- †Nectosaurus halius Merriam, 1905 [Thalattosaurus shastensis Merriam, 1905 (in partim)] L.Trias. WNAm.
      |  |?- †Concavispina biseridens Zhao, Liu, Li & He, 2013; Trias. SEAs.
      |  `--o Xinpusaurus Yin in Yin et al., 2000; Trias. SEAs.
      |     |-- †X. suni Yin in Yin et al., 2000; Trias. SEAs.
      |     `-- †X. bamaolinensis Cheng, 2003 [incl. X. kohi Jiang, Maisch, Sun, Matzke & Hao, 2004]
      `==o †Thalattosauridae Merriam, 1905 [Thalattosaurida Nicholls, 1999] [paraphyletic]
         |-- †Agkistrognathus campbelli Nicholls & Brinkman, 1993
         `--+-- †Paralonectes merriami Nicholls & Brinkman, 1993
            `--+--o †Thalattosaurus Merriam, 1904 [Scenodon] L.Trias. WNAm.
               |  |-- †T. alexandrae Merriam, 1904 [Thalattosaurus shastensis Merriam, 1905 (in partim); Thalattosaurus perrini Merriam, 1905]
               |  `-- †T. borealis Nicholls & Brinkman, 1993
               `--o Claraziidae
                  |-- †Clarazia schinzi Peyer, 1936a
                  `-- †Hescheleria ruebeli Peyer, 1936b

<==o †Thalattosauriformes
   |-- †Endennasaurus
   |-- †Askeptosaurus
   `--o †Thalattosauria
      |-- †Hescheleria 
      `--o †Thalattosauroidea
         |-- †Nectosaurus
         `--o †Thalattosauridae
            |-- †Clarazia
            `--o †Thalattosaurida
               |-- †Thalattosaurus
               `--+-- †Paralonectes
                  `-- †Agkistrognathus

Reference(s):

• Carroll, R. L., 1988: Vertebrate paleontology and evolution.
  –W. H. Freeman and company, New York, 1988, 698.
• Carroll, R. L., 1988: Appendix. 594-648.
  in Carroll, R. L. 1988: Vertebrate paleontology and evolution.
  –W. H. Freeman and company, New York, 1988, 698
• Jiang, D.-Y., Maisch, M. W., Sun, Y.-L., Matzke, A. T. & Hao, W.-C., 2004: A new species of Xinpusaurus (Thalattosauria) from the Upper Triassic of China.
  –Journal of Vertebrate Paleontology: Vol. 24, #1, pp. 80-88
• Müller, J., 2005: The anatomy of Askeptosaurus italicus from the Middle Triassic of Monte San Giorgio and the interrelationships of thalattosaurs (Reptilia, Diapsida).
  –Canadian Journal of Earth Sciencies: Vol. 42, #7, pp. 1347-1367
• Müller, J., Renesto, S. & Evans, S. E., 2005: The marine diapsid reptile Endennasaurus from the Upper Triassic of Italy.
  –Palaeontology: Vol. 48, #1, pp. 15-30
• Nicholls, E. L., 1999: A reexamination of Thalattosaurus and Nectosaurus and the relationships of the Thalattosauria (Reptilia: Diapsida)
  –PaleoBios: Vol. 19, #1, pp. 1-29 [abstract: http://www.ucmp.berkeley.edu/museum/pbios/abstracts19_1to3.html]
• Nicholls, E. L. & Brinkman, D., 1993: New Thalattosaurs (Reptilia: Diapsida) from the Triassic Sulphur Mountain Formation of Wapiti Lake, British Columbia.
  –Journal of Paleontology: Vol. 67, #2, pp. 263-278 [doi: 10.2307/1305995]
• Zhao, L.-J., Liu, J., Li, C. & He, T., 2013: A new thalattosaur, Concavispina biseridens gen. et sp. nov. from Guanling, Guizhou, China. [in Chinese].
  –Vertebrata PalAsiatica: Vol. 51, #1, pp. 24-28
• Rieppel, O., 1997: Part II: Sauropterygia - Introduction. 107-119
  in Callaway, J. M. & Nicholls, E. L., (eds.) 1997: Ancient Marine Reptiles. xivi-501
  –Academic Press, San Diego, 1997
• Rieppel, O., 2000: Paraplacodus and the phylogeny of the Placodontia (Reptilia: Sauropterygia).
  –Zoological Journal of the Linnean Society: Vol. 130, #4, pp. 635-659
• Rieppel, O. & Hagdorn, H., 1997: Paleobiogeography of Middle Triassic Sauropterygia in Central and Western Europe. 121-144
  in Callaway, J. M. & Nicholls, E. L., (eds.) 1997: Ancient Marine Reptiles. xivi-501
  –Academic Press, San Diego, 1997
• Rieppel, O. & Liu, J., 2006: on Xinpusaurus (Reptilia: Thalattosauria).
  –Journal of Vertebrate Paleontology: Vol. 26, #1, pp. 200-204
• Rieppel, O., Liu, J. & Bucher, B., 2000: The fist record of a thalattosaur reptile from the Late Triassic of Southern China (Guizhou Province, PR China)
  –Journal of Vertebrate Paleontology: Vol. 20, #3, pp. 507-514
• Rieppel, O. C., Müller, J. & Liu, J., 2005: Rostral structure in Thalattosauria (Reptilia, Diapsida).
  –Canadian Journal of Earth Sciencies: Vol. 42, pp. 2081-2086