Polycotylidae

Haec reptilia, quod eis erant colla brevia et magna capita elongata, Pliosauriorum similia erant, sed accuratiores investigationes phylogeneticae ea docent multas proprietates habuisse quas etiam Plesiosauridis Elasmosauridisque erant.

Phylogenia[recensere | fontem recensere]

Cladogramma secundum Albright, Gillette, et Titus (2007).^[3]

Plesiosauria

Plesiosaurus

Polycotylidae

Edgarosaurus

Cladogramma secundum Ketchum et Benson (2010).^[2]

Plesiosauroidea

Cryptoclididae

Polycotylidae

Plesiopleurodon

QM F18041

↑ Patrick S. Druckenmiller et Anthony P. Russell (2009). "Earliest North American Occurrence Of Polycotylidae (Sauropterygia: Plesiosauria) From The Lower Cretaceous (Albian) Clearwater Formation, Alberta, Canada". Journal of Paleontology 83 (6): 361–392
↑ ^2.0 ^2.1 H. F. Ketchum et R. B. J. Benson, (2010). "Global interrelationships of Plesiosauria (Reptilia, Sauropterygia) and the pivotal role of taxon sampling in determining the outcome of phylogenetic analyses". Biological Reviews 85: 361–392
↑ L. B. Albright III, D. D. Gillette, et A. L. Titus, 2007b. Plesiosaurs from the Upper Cretaceous (Cenomanian-Turonian) Tropic Shale of southern Utah, part 2: polycotylidae. Journal of Vertebrate Paleontology 27(1): 41–58.
↑ Schumacher, B. A., 2007, A new polycotylid plesiosaur (Reptilia; Sauropterygia) from the Greenhorn Limestone (Upper Cretaceous; lower upper Cenomanian), Black Hills, South Dakota: In: The Geology and Paleontology of the Late Cretaceous marine deposits of the Dakotas, edited by Martin, J. E., and Parris, D. C., The Geological Society of America, Special Paper 427, p. 133-146.

Haec stipula ad reptile spectat. Amplifica, si potes!