†unranked clade Plesiosauria de Blainville 1835 (plesiosaur)

Reptilia - Sauropterygia

Alternative spelling: Plesiosauri

Parent taxon: Pistosauria according to R. B. J. Benson and P. S. Druckenmiller 2014

See also Andrews 1910, Antunes 1964, Bardet et al. 1991, Brown 1981, Carroll 1988, Delair 1960, Druckenmiller and Russell 2006, Druckenmiller and Russell 2008, Fabbri et al. 2013, Gasparini 1997, Gasparini et al. 2002, Jaekel 1910, Kuhn 1946, Kuhn 1966, Nicholls and Meckert 2002, O'Gorman et al. 2018, O'Gorman et al. 2018, O'Keefe 2001, O'Keefe 2004, O'Keefe 2008, Osborn 1903, Osborn 1903, Osborn 1904, Rieppel 1994, Roxo 1937, Sepkoski 2002, Serratos et al. 2017, Smith 2015, Smith and Ara├║jo 2017, Thurmond and Jones 1981, Vincent and Benson 2012, Vincent and Storrs 2019, Vincent et al. 2019 and Wintrich et al. 2017

Sister taxa: Augustasaurus, Bobosaurus, Pistosauridae, Pistosaurus

Subtaxa: 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 Lindwurmia Lutkesaurus Mauisaurus brachiolatus 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 Pliosauroidea Pliosaurus planus Plistosauroidea 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 Uronautes Uronautes cetiformis

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Ecology: aquatic carnivore

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