†“Elasmosauroidea”

<==o †“Elasmosauroidea”
   |?- †Eretmosaurus rugosus (Owen, 1840) Seeley, 1874 [Plesiosaurus rugosus Owen, 1840]
   |?- †Leurospondylus ultimus Brown, 1913
   |?- †Occitanosaurus tournemirensis (Sciau, Crochet & Mattei, 1990) Bardet, Godefroit & Sciau, 1999 [Plesiosaurus tournemirensis Sciau, Crochet & Mattieu 1990]
   `--+--o †“Mureanosauridae”
      |  `--o †Muraenosaurus Seeley, 1847 [Picrocleidus Andrews, 1909; Tremamesacleis White, 1940] [is an advanced Cryptoclidid?]
      |     |-- †M. leedsi Seeley 1874
      |     `-- †M. beloclis Seeley 1892 [Picrocleidus beloclis (Seeley 1892) Andrews, 1909]
      `--+?-o †Cimoliasauridae Delair, 1959
         |  |-- †Scanisaurus nazarowi (Bogolubov, 1911) Persson, 1959 [nomen dubium]
         |  `--o †Cimoliasaurus Leidy, 1851 [problematic, type nomen dubium]
         |     |-- †C. planus
         |     |-- †C. magnus Leidy, 1851
         |     `-- †C. maccoyi Etheridge, 1904 
         `--+-- †Polycotylidae Cope, 1869 [non Williston, 1925?] [Dolichorhynchopidae Welles, 1962]
            `-- †Elasmosauridae Cope, 1869

Elasmosauroidea incertae sedis:

    †Oligosimus Leidy, 1872
    †Thalassonomosaurus Welles, 1943

Reference(s):

Creisler, B., 1999-2001: Plesiosauria translation and pronunciation guide.
–iNet: Dinosauria.com: http://www.dinosauria.com/dml/names/ples.html
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.
–Academic Press, San Diego, 1997, xivi-501
Druckenmiller, P. S. & Knutsen, E. M., 2012: Phylogenetic relationships of Upper Jurassic (Middle Volgian) plesiosaurians (Reptilia: Sauropterygia) from the Agardhfjellet Formation of central Spitsbergen, Norvay.
–Norwegian Journal of Geology: Vol. 92, pp. 277-284
Everhart, M., 2000: Something about Plesiosaurs.
–iNet: WWW.OceansofKansas.com: http://www.oceansofkansas.com/plesio2.html
Everhart, M., 2000: Something about Pliosaurs.
–iNet: WWW.OceansofKansas.com: http://www.oceansofkansas.com/pliosaur.html
Kazlev, M. A., 1999: Cimoliasauridae.
–iNet: http://www.kheper.auz.com/gaia/biosphere/vertebrates/sauropterygia/Cimoliasauridae.htm
Kazlev, M. A., 1999: Eretmosaurus.
–iNet: http://www.kheper.auz.com/gaia/biosphere/vertebrates/sauropterygia/Eretmosaurus.html
Kazlev, M. A., 1999: Family Elasmosauridae.
–iNet: http://www.kheper.auz.com/gaia/biosphere/vertebrates/sauropterygia/Elasmosauridae.htm
Rieppel, O., 1997: Part II: Sauropterygia – Introduction. 107-119
in Callaway, J. M. & Nicholls, E. L., (eds.) 1997: Ancient Marine Reptiles.
–Academic Press, San Diego, 1997, xivi-501
Sato, T., 2005: A new polycotylid plesiosaur (Reptilia: Sauropterygia) from the upper Cretaceous Bearpaw Formation in Saskatchewan, Canada.
–Journal of Paleontology: Vol. 79, #5, pp. 969-980
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.
–Academic Press, San Diego, 1997, xivi-501
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

Mikko's Phylogeny Archive

†“Elasmosauroidea” – elasmosaurs and relatives

Elasmosauroidea incertae sedis:

Reference(s):