Plesiosaurs are a group of Mesozoic marine diapsids. Most derived plesiosaurs fall into one
of two typical body forms: those with proportionately small heads, short snouts, and …

Elasmosauridae were cosmopolitan Late Cretaceous plesiosaurs with conspicuous
morphological diversity. Within this group, vertebral morphology is a criterion for estimating …

In his seminal work,'North American Plesiosaurs: Elasmosaurus, Cimoliasaurus, and
Polycotylus', Samuel Wendell Williston delves into the fascinating world of prehistoric marine …

Throughout the Jurassic, a plethora of marine reptiles dominated ocean waters, including
ichthyosaurs, plesiosaurs and thalattosuchian crocodylomorphs. These Jurassic ecosystems …

Piatnitzkysauridae were Jurassic theropods that represented the earliest diverging branch of
Megalosauroidea, being one of the earliest lineages to have evolved moderate body size …

This paper redescribes the holotype skull of the aristonectine elasmosaur Morturneria
seymourensis from the upper Maastrichtian of Seymour Island, Antarctica. This description …

Plesiosaurs were the longest-surviving group of secondarily marine tetrapods, comparable
in diversity to today's cetaceans. During their long evolutionary history, which spanned the …

ABSTRACT A new elasmosaurid plesiosaur, Albertonectes vanderveldei, gen. et sp. nov., is
described on the basis of an almost complete postcranial skeleton from the upper …

Plesiosaurian marine reptiles evolved a wide range of body shapes during the Jurassic and
Cretaceous, including long-necked forms. Many Late Cretaceous members of the clade …

The Antarctic plesiosaurian record is critical for understanding the evolution of
elasmosaurids in the southern hemisphere. Elasmosaurids exhibit some of the most …