Sauropterygia


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Sauropterygia

[sȯ‚räp·tə′rij·ē·ə]
(paleontology)
An order of Mesozoic marine reptiles in the subclass Euryapsida.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Sauropterygia

 

an order of extinct aquatic predatory reptiles of the subclass Synaptosauria. The Triassic notosaurs had a body structure typical of terrestrial animals; the later (Jurassic-Cretaceous) plesiosaurs were similar in appearance and way of life to seals and other pinniped mammals, and they almost lost connection with dry land. Some Sauropterygia, especially the later ones, were characterized by a very long and flexible neck (elasmosaurs) with an increased number of vertebrae.

There were approximately 15 families (comprising several dozen genera). Numerous remains of Sauropterygia have been found on all the continents, including the territory of the USSR. Sauropterygia are interesting as an elucidation of the history of reptiles and their adaptation to an aquatic environment.

REFERENCE

Osnovy paleontologii: Zemnovodnye, presmykaiushchiesia i ptitsy. Moscow, 1964.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
Cranial anatomy, taxonomic implications and paleopathology of an Upper Jurassic pliosaur (Reptilia : Sauropterygia) from Westbury, Wiltshire, UK, Paleontology, 55, no.
(2014): A gigantic nothosaur (Reptilia: Sauropterygia) from the Middle Triassic of SW China and its implication for the Triassic biotic recovery.
(2015): A new specimen of Diandongosaurus acutidentatus (Sauropterygia) from the Middle Triassic of Yunnan, China.
(2015): A new pistosauroid (Reptilia, Sauropterygia) from the late Ladinian Xingyi marine reptile level, southwestern China.
Descripcion del primer ejemplar de Ceresiosaurus (Reptilia: Sauropterygia), hallado en la Peninsula Iberica en al Ladiniense (Triasico Medio) de Mont-ral Alcover (Tarragona).
(1994): Osteology of Simosaurus gaillardoti and the relationships of stem-group Sauropterygia. Fieldiana: Geology 28, 1-85.
(1998b): The systematic status of Hanosaurus hupehensis (Reptilia, Sauropterygia) from the Triassic of China.
(1998c): Corosaurus alcovensis Case and the phylogenetic interrelationships of Triassic stem-group Sauropterygia. Zoological Journal of the Linnean Society 124(1), 1-41.
(2001): A new species of Nothosaurus (Reptilia: Sauropterygia) from the Upper Muschelkalk (Lower Ladinian) of southwestern Germany.
(1996): A revision of the genus Nothosaurus (Reptilia: Sauropterygia) from the Germanic Triassic, with comments on the status of Conchiosaurus clavatus.
(1999): Sauropterygia from the Middle Triassic of Makhtesh Ramon, Negev, Israel.
(1997): A new pistosaurid (Reptilia: Sauropterygia) from the Middle Triassic of Nevada and its implications for the origin of the plesiosaurs.