After O'Keefe, 2001, 2004, and O'Keefe & Street, 2009
<==o †Cryptoclidia Williston, 1925 sensu Ketchum & Benson, 2010 [Cryptoclidoidea Williston, 1925 sensu O'Keefe, 2001] |-- †Cryptoclididae Williston, 1925 sensu O'Keefe, 2001 [incl. “Mureanosauridae”] `--o †Tricleidia O'Keefe, 2001 |-- †Tricleidus seeleyi Andrews 1909 [is a "Mureanosaurid"] |--o †Aristonectidae O'Keefe & Street, 2009 [Cimoliasauridae DeLair, 1959 sensu O'Keefe, 2001 [problematic, family-name based on invalid genus]] | |?- †Abyssosaurus nataliae Berezin, 2011 | |?- †Aristonectes parvidens Cabrera, 1941 [see taxomonic notes of Aristonectes] [is an Elasmosaurid (Gasparini et al., 2003; Ketchum & Benson, 2010)] | |?- †Tatenectes laramiensis (Knight, 1900) O'Keefe & Wahl, 2003 [Cimoliasaurus laramensis Knight, 1900; Tricleidus? laramensis Knight, 1900; Mehl, 1912] | |-- †Kaiwhekea katiki Cruickshank & Fordyce, 2002 | `--+-- †Morturneria seymourensis (Chatterjee & Small, 1989) Chatterjee & Creisler, 1994 [see taxonomic notes of Morturneria] | `--+-- †“Cimoliasauridae” genera et species indet. [O'Keefe, 2004] [Wyoming Taxon 1] | `-- †Kimmerosaurus langhami Brown, 1981 [=? Colymbosaurus] `-- †Polycotylidae Williston, 1909 [non? Cope, 1869] sensu O'Keefe, 2001 [Dolichorhynchopidae Welles, 1962]
Cryptoclidoidea incertae sedis:
†Apractocleides aldingeri [synonym of Cryptocleidus, I'm not sure which species] †Apractocleides teretipes Smellie, 1915 [synonym of Cryptocleidus, I'm not sure which species] †Ceraumosaurus brownorum Thurmond, 1968 [is a polycotylid (Forrest, 2002)] †Scanisaurus nazarowi (Bogolubov, 1911) Persson, 1959 [nomen dubium] †Cimoliasaurus Leidy, 1851 [nomen dubium] †C. planus †C. magnus Leidy, 1851 †C. maccoyi Etheridge, 1904
After Berezin, 2011
<==o †Aristonectidae
|--+-- †Tatenectes
| `-- †Kimmerosaurus
`--+--+-- †Abyssosaurus
| `-- †Cimoliasaurus magnus
`--+-- †Kaiwhekea
`-- †Aristonectes
Reference(s):
|
After Ketchum & Benson, 2010<==o †Cryptoclidia |--o †Cryptocleididae | |--+-- †Cryptoclidus | | `-- †Kimmerosaurus | `--+-- †Mureanosaurus | `-- †Tricleidus `--o †Leptocleidia |-- †Leptocleididae `-- †Polycotylidae Reference(s):
|
After O'Keefe & Street, 2009<==o †Cryptoclidia |-- †Cryptoclidus |-- †Mureanosaurus `--o †Tricleidia |-- †Tricleidus `--+-- †Polycotylidae `--o †Aristonectidae |--+-- †Kimmerosaurus | `-- †Tatenectes `--+-- †Aristonectes `-- †Kaiwhekea Reference(s):
|
Reference(s):
- Berezin, A., 2011: A new plesiosaur of the family Aristonectidae from the Early Cretaceous of the center of the Russian platform.
–Paleontological Journal: Vol. 45, #6, pp. 648-660 [doi: 10.1134/s0031030111060037] - Carpenter, K., 1997: Comperative cranial anatomy of two North American Cretaceous plesiosaurs. 191-216
in Callaway, J. M. & Nicholls, E. L., (eds.) 1997: Ancient Marine Reptiles. xivi-501
–Academic Press, San Diego, 1997 - Creisler, B., 1999-2001: Plesiosauria translation and pronunciation guide.
–iNet: Dinosauria.com: http://www.dinosauria.com/dml/names/ples.html - Cruickshank, A. R. I. & Fordyce, R. E., 2002: A New Marine Reptile (Sauropterygia) from New Zealand: Further Evidence for A Late Cretaceous Austral Radiation of Cryptoclidid Plesiosaurs.
–Palaeontology: Vol. 45, #3, pp. 557-575 [doi: 10.1111/1475-4983.00249] - Druckenmiller, P. S., 2002: Osteology of a new plesiosaur from the Lower Cretaceous (Albian) Thermopolis shale of Montana.
–Journal of Vertebrate Paleontology: Vol. 22, #1, pp. 29-42 - Everhart, M., 2000: Something about Plesiosaurs.
–iNet: WWW.OceansofKansas.com: http://www.oceansofkansas.com/plesio2.html - Forrest, R., 2002: Cryptoclididae - species
–iNet: The Plesiosaur Site: http://www.plesiosaur.com/taxonomy/Cryptoclididae.htm - Forrest, R., 2002: Polycotylidae - species
–iNet: The Plesiosaur Site: http://www.plesiosaur.com/taxonomy/Polycotylidae.htm - O'Keefe, F. R., 2001: A cladistic analysis and taxonomic revision of the Plesiosauria (Reptilia: Sauropterygia).
–Acta Zoologica Fennica: Vol. #213, pp. 1-63 - O'Keefe, F. R., 2004: On the cranial anatomy of the polycotylid plesiosaurs, including new material of Polycotylus latipinnis, Cope, from Alabama.
–Journal of Vertebrate Paleontology: Vol. 24, #2, pp. 326-340 - O'Keefe, F. R. & Street, H. P., 2009: Osteology of the Cryptocleidoid Plesiosaur Tatenectes laramiensis, with Comments on the Taxonomic Status of the Cimoliasauridae.
–Journal of Vertebrate Paleontology: Vol. 29, #1, pp. 48-57 [doi: 10.1671/039.029.0118] - Ketchum, H. F. & Benson, R. B. J., 2010: Global interrelationships of Plesiosauria (Reptilia, Sauropterygia) and the pivotal role of taxon sampling in determining the outcome of phylogenetic analyses.
–Biological Reviews: Vol. 85, #2, pp. 361-392 [doi: 10.1111/j.1469-185X.2009.00107.x] - 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 - Sato, T. & Storrs, G. W., 2000: An early polycotylid plesiosaur (Reptilia: Sauropterygia) from the Cretaceous of Hokkaido, Japan.
–Journal of Paleontology: Vol. 74, #5, pp. 907-914 - Storrs, G. W., 1997: Morphological and taxonomic clarification of the genus Plesiosaurus. 145-190
in Callaway, J. M. & Nicholls, E. L., (eds.) 1997: Ancient Marine Reptiles. xivi-501
–Academic Press, San Diego, 1997 - Storrs, G. W., Arkhangel'skii, M. S. & Efimov, V. R., 2000: Mezosoic marine reptiles of Russia and other former Soviet republics. 187-210
in Benton, M. J., Shishkin, M. A., Unvin, D. M. & Kurochkin, E. N., (eds.) 2000: The Age of Dinosaurs in Russia and Mongolia.
–Cambridge University Press, Cambridge, 2000 xxxix-696