The colonisation of freshwater and marine ecosystems by land vertebrates has repeatedly
occurred in amphibians, reptiles, birds and mammals over the course of 300 million years …

The terrestrial origins of the diapsid Sauropterygia and Testudines are uncertain, with the
latter being highly controversially discussed to this day. For only 15 Ma, Nothosauroidea …

Plesiosaurians are an extinct group of highly derived Mesozoic marine reptiles with a global
distribution that spans 135 million years from the Early Jurassic to the Late Cretaceous …

The diapsid plesiosaurs were pelagic and inhabited the oceans from the Triassic to the
Cretaceous. A key evolutionary character of plesiosaurs is the four wing‐like flippers. While …

Extinct worlds live again in palaeoart: artworks of fossil animals, plants and environments
carefully reconstructed from palaeontological and geological data. Such artworks are …

Background The Plesiosauria (Sauropterygia) are secondary marine diapsids. They are the
only tetrapods to have evolved hydrofoil fore-and hindflippers. Once this specialization of …

Background Plesiosaurs, diapsid crown-group Sauropterygia, inhabited the oceans from the
Late Triassic to the Late Cretaceous. Their most exceptional characteristic are four hydrofoil …

Nothosaurs form a subclade of the secondarily marine Sauropterygia that was well
represented in late Early to early Late Triassic marine ecosystems. Here we present and …

Plesiosaurians evolved four wing-like flippers that are morphologically similar to each other
and were most likely used in underwater flight. Plesiosaurians have been the subject of a …

Sauropterygia was a diverse clade of secondary aquatic reptiles, which represented one of
the most important vertebrate groups in the shallow marine communities during the Triassic …