New clues from ancient seas are reshaping what we know about mass extinction and the future of our oceans. In a recent ...

When large marine animals like whales die, they sink down to the seabed. Once their flesh has been stripped away by ...

Ichthyosaurs sported a dolphin-like body with a fish-like tail; plesiosaurs had long necks and paddle-like limbs. Both were known as “cruisers,” meaning they moved frequently and actively ...

Plesiosaurus simply took up an intermediate place between semi-aquatic crocodiles and the fish-like ichthyosaurs so that there would be no gap in the natural order.

In the case of ichthyosaurs and plesiosaurs, these land-dwelling ancestors were probably something like lizards. We know that the various ancient marine reptiles produced their young live at sea ...

The trouble with such plesiosaurs is that their tails were not adapted for propulsion to the same degree as the ichthyosaurs, mosasaurs, and marine crocodiles known to have tail fins.

But whales may only be the latest creatures to so enrich the sea floor. Long before whales, the carcasses of marine crocodiles, sea turtles, mosasaurs, ichthyosaurs, and plesiosaurs settled on the ...

You might think that by now, we would have learned all we're ever going to know about plesiosaurs. Such is not the case, however, as a recent study indicates that the creatures had smooth skin on ...

Long before whales, the carcasses of marine crocodiles, sea turtles, mosasaurs, ichthyosaurs, and plesiosaurs settled on the bottom. (Even the occasional dinosaur carcass floated out into deep water.) ...

A newly discovered plesiosaur fossil suggests several species of the long-necked marine dinosaur roamed the oceans 180 million years ago. The nearly complete specimen of Plesiopterys wildi from ...

Ichthyosaurs and plesiosaurs both had body temperatures well above their surroundings, Bernard and colleagues found. Mosasaurs' body temperature appeared to track with water temperature. However, ...

Large bodies helped extinct marine reptiles with long necks swim, new study finds Date: April 28, 2022 Source: University of Bristol Summary: Scientists have discovered that body size is more ...