Polycotylids were a clade of short-necked plesiosaur that achieved a worldwide distribution
and a peak of diversity during the Albian–Turonian, reaching the K/Pg mass extinction with a …

Thalassomedon haningtoni is one of the most completely preserved elasmosaurid
plesiosaurians described to date. Unlike most other elasmosaurid fossils, both the holotype …

Abstract The Snow Hill Island Formation (SHIF; late Campanian–early Maastrichtian) crops
out in the northeast of the Antarctic Peninsula and constitutes the basal part of the late …

The last twenty million years (Maastrichtian–Santonian) of Southern Hemisphere plesiosaur
history is especially well recorded in the Weddellian Province (Patagonia; Western …

Elasmosaurids are a cosmopolitan group of plesiosaurians that radiated during the Late
Cretaceous. A new specimen of the small sized elasmosaurid Kawanectes lafquenianum is …

A new elasmosaurid Marambionectes molinai gen. et sp. nov. from the upper Maastrichtian
levels of the López de Bertodano Formation is here described. The new taxon is …

Here we report on a newly collected, well-preserved vertebral centrum of a plesiosaur from
the type area of the Maastrichtian Stage in southern Limburg. The specimen is interpreted as …

Although knowledge of Mesozoic marine reptiles from Antarctica has improved considerably
in recent years, associated and well-preserved skeletal material of these animals remains …

Plesiosaurs are extinct marine reptiles that lived during the Mesozoic, well-known for their
unique body plan with two pairs of flippers and an elongated neck. What this long neck was …

Elasmosauridae is a monophyletic group of plesiosaurs that evolved in the Early Cretaceous
and radiated to achieve a cosmopolitan distribution by the end of the Cretaceous. They were …