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Plesiosaur

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Author Topic: Plesiosaur  (Read 3673 times)
Melody Stacker
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« on: October 09, 2007, 11:20:09 am »

Taxonomy
The classification of plesiosaurs has varied over time; the following represents one current version (see O'Keefe 2001)


•   Superorder SAUROPTERYGIA
o   Order PLESIOSAURIA
   Suborder Pliosauroidea
   Suborder Plesiosauroidea(Gray, 1825) Welles, 1943 sensu O'Keefe, 2001
   Plesiopterys O'Keefe, 2004
   Family Plesiosauridae Gray, 1825 sensu O'Keefe, 2001
   Attenborosaurus Bakker, 1993
   Plesiosaurus De la Beche & Conybeare, 1821
   (Unranked) Euplesiosauria O'Keefe, 2001
    ? Sthenarosaurus Watson, 1911 (nomen dubium)
    ? Eretmosaurus Seeley, 1874
    ? Leurospondylus Brown, 1913
   Superfamily Cryptoclidoidea Williston, 1925 sensu O'Keefe, 2001
   Family Cryptoclididae Williston, 1925 sensu O'Keefe, 2001
    ? Tatenectes O’Keefe & Wahl, 2003
    ? Colymbosaurus Seeley, 1874
   Cryptocleidus Seeley, 1892
   Muraenosaurus Seeley, 1874
   Pantosaurus Marsh, 1891
   Vinialesaurus Gasparini, Bardet & Iturralde-Vinent, 2002
   (Unranked) Tricleidia O'Keefe, 2001
   Family Tricledidae Nova
   Tricleidus Andrews, 1909
   Family Cimoliasauridae Delair, 1959 sensu O'Keefe, 2001
    ? Aristonectes Cabrea, 1941
   Kaiwhekea Cruickshank & Fordyce, 2002
   Kimmerosaurus Brown, 1981
   Cimoliasaurus Leidy, 1851 (nomen dubium)
   Family Polycotylidae Williston, 1909 sensu O'Keefe, 2001
    ? Edgarosaurus Druckenmiller, 2002
    ? Georgiasaurus Otschev, 1978
   Polycotylus Cope, 1869
   Dolichorhynchops Willison, 1903
   Trinacromerum Cragin, 1888
   Sulcusuchus Gasparini & Spalletti, 1990
   Thililua Bardet, Pereda Suberbiola & Jalil, 2003
   Family Elasmosauridae Cope, 1869 sensu Bardet, Godefroit & Sciau, 1999
    ? Morenosaurus Welles, 1943
   Occitanosaurus Bardet, Godefroit & Sciau, 1999
   Microcleidus Watson, 1911
   Family Elasmosauridae Cope, 1869 sensu O'Keefe, 2001
    ? Futabasaurus Sato, Hasegawa & Manabe, 2006
    ? Orophosaurus Cope, 1887 (nomen dubium)
    ? Woolungasaurus Persson, 1960
    ? Ogmodirus Williston & Moodie, 1913 (nomen dubium)
    ? Fresnosaurus Welles, 1943
    ? Piptomerus Cope, 1887 (nomen vanum)
    ? Goniosaurus Meyer, 1860
    ? Mauisaurus Hector, 1874
    ? Aphrosaurus Welles, 1943
    ? Hydrotherosaurus Welles, 1943
    ? Hydralmosaurus Welles, 1943
    ? Terminonatator Sato, 2003
    ? Turangisaurus Wiffen & Moisley, 1986
    ? Thalassomedon Welles, 1943
   Elasmosaurus Cope, 1869
   Brancasaurus Wegner, 1914
   Callawayasaurus Carpenter, 1999
   Libonectes Carpenter, 1997
   Styxosaurus Welles, 1943


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