†superfamily Pliosauroidea Welles 1943 (plesiosaur)

Reptilia - Sauropterygia

Synonym: Brachydeira Seeley 1892

Parent taxon: Plesiosauria according to H. F. Ketchum and R. B. J. Benson 2011

See also Bardet et al. 1991, Brown 1981, Carpenter 1996, Carroll 1988, Delair 1960, Gasparini 1997, Gasparini and Spaletti 1993, Ketchum and Benson 2010, O'Keefe 2001, Persson 1963, Schumacher and Everhart 2005, Seeley 1892, Thurmond and Jones 1981, Welles 1943 and Welles 1962

Sister taxa: Aptychodon, Aptychodon cretaceus, Bathyspondylus, Cimoliasaurus lissaensis, Cimoliasaurus teplicensis, Cimoliosaurus nazarowi, Discosaurus planior, Discosaurus vetustus, Elasmosaurus intermedius, Elasmosaurus orientalis, Embaphias, Embaphias circulosus, Eoplesiosaurus, Eretmosaurus, Gymocetus, Hexatarsostinus, Hunosaurus fasseli, Iserosaurus littoralis, Lutkesaurus, Mauisaurus brachiolatus, Muraenosauridae, Namuncurania, Neoplesiosauria, Nothosaurops, Oligosimus grandaevus, Orophosaurus, Orophosaurus pauciporus, Peloneustes kanzleri, Piptomerus hexagonus, Piptomerus megaloporus, Piptomerus microporus, Piratosaurus plicatus, Plesiosauroidea, Plesiosaurus affinis, Plesiosaurus australis, Plesiosaurus balticus, Plesiosaurus bernardi, Plesiosaurus brachistospondylus, Plesiosaurus brevifemur, Plesiosaurus brevis, Plesiosaurus continuus, Plesiosaurus cycnodeirus, Plesiosaurus degenhardti, Plesiosaurus ellipsospondylus, Plesiosaurus euryspondylus, Plesiosaurus gouldii, Plesiosaurus hexagonalis, Plesiosaurus infraplanus, Plesiosaurus latispinus, Plesiosaurus levis, Plesiosaurus lockwoodii, Plesiosaurus megapleuron, Plesiosaurus microdeirus, Plesiosaurus mudgei, Plesiosaurus neocomiensis, Plesiosaurus nordmanni, Plesiosaurus ophiodeirus, Plesiosaurus pachyomus, Plesiosaurus phillipsi, Plesiosaurus planispondylus, Plesiosaurus planus, Plesiosaurus planus trigonalis, Plesiosaurus platydeirus, Plesiosaurus poecilospondylus, Plesiosaurus shirleyensis, Plesiosaurus subdepressus, Plesiosaurus traversii, Plesiosaurus truncatus, Plesiosaurus validus, Plesiosaurus winspitensis, Pliosauridae, Pliosaurus planus, Polycotylus donicus, Polycotylus epigurgitis, Polycotylus orientalis, Polycotylus tenuis, Polycotylus ultimus, Polyptychodon, Polyptychodon neocomiensis, Rhaeticosaurus, Rhomaleosauridae, Scarrisaurus, Stereosaurus cratynotus, Stereosaurus platyomus, Stereosaurus stenomus, Stratesaurus, Sulmosaurus, Taphrosaurus, Tremamesacleididae, Uronautes, Uronautes cetiformis

Subtaxa: Trinacromeridae

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Ecology: nektonic carnivore

Distribution:

• Cretaceous of Australia (4 collections), Egypt (1), France (1)

• Jurassic of Australia (1), Denmark (1), the United Kingdom (1)

Total: 9 collections each including a single occurrence

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