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The many plesiosaur species may have differed considerably in their swimming speeds, reflecting the various body shapes present in the group. While the short-necked "pliosauromorphs" (e.g. Liopleurodon ) may have been fast swimmers, the long-necked "plesiosauromorphs" were built more for manoeuvrability than for speed, slowed by a strong skin ...
It contains only one species, the type, Plesiosaurus dolichodeirus. Other species once assigned to this genus, including P. brachypterygius , P. guilielmiimperatoris , and P. tournemirensis have been reassigned to new genera, such as Hydrorion , Seeleyosaurus and Microcleidus .
This list of plesiosaurs is a comprehensive listing of all genera that have ever been included in the order Plesiosauria, excluding purely vernacular terms.The list includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomen dubium), or were not formally published (nomen nudum), as well as junior synonyms of more established names, and genera that ...
Pravoslavlev recognized another species from New Zealand, E. hoodii, named by Owen in 1870 as Plesiosaurus hoodii based on a neck vertebra. [62] Welles recognized it as a nomen dubium in 1962; [33] Joan Wiffen and William Moisley concurred in a 1986 review of New Zealand plesiosaurs. [63] In 1949 Welles named a new species of Elasmosaurus, E ...
Seeley initially described Peloneustes as a species of Plesiosaurus, a rather common practice (at the time, the scope of genera was similar to what is currently used for families). [23]: 7 In 1874, Seeley named a new family of plesiosaurs, Pliosauridae, to contain forms similar to Pliosaurus. [27]
Conybeare described the new species name Plesiosaurus dolichodeirus for the Plesiosaurus discovered by Anning. As the first species name given to a distinctive and well preserved Plesiosaurus skeleton it has come to be regarded as both the type specimen of Plesiosaurus dolichodeirus specifically and of the genus Plesiosaurus as a whole. [15 ...
Scanisaurus is a dubious genus of plesiosaur that lived in what is now Sweden and Russia during the Campanian stage of the Late Cretaceous period. The name Scanisaurus means "Skåne lizard", Skåne being the southernmost province of Sweden, where a majority of the fossils referred to the genus have been recovered.
Plesiosauroidea (/ ˈ p l iː s i ə s ɔːr /; Greek: πλησιος plēsios 'near, close to' and σαυρος sauros 'lizard') is an extinct clade of carnivorous marine reptiles.They have the snake-like longest neck to body ratio of any reptile.