A bizarre reptile once scurried through the Triassic treetops with an extravagant crest on its back, one made from neither scale, nor bone, nor feather. The extinct creature's 247-million-year-old ...

A recent fossil discovery is offering new insights into what pterosaurs actually ate, challenging long-held assumptions about these ancient rulers of the skies. In a study published in the ...

PHOENIX — Fossils from the Petrified Forest National Park, in northern Arizona, revealed a new reptile species that thrived during the Triassic Period. Paleontologists and partners with the ...

The life of a 166-million-year-old reptile has been turned upside down. While Marmoretta oxoniensis was believed to have swum in ancient lagoons, new research reveals it spent its time climbing trees ...

For 24 years, a nearly complete ichthyosaur skeleton gathered dust in a Canadian museum, overlooked amid thousands of fossils ...

Scientists discovered fossilized reptile skin in an Oklahoma cave, revealing the oldest known example dating back nearly 300 million years.

The newly classified species, named Plesionectes longicollum ("long-necked near-swimmer"), represents a previously unknown type of plesiosauroid—the group of long-necked marine reptiles that inhabited ...

Marine palaeoecosystems of the past are intricately linked with the diverse assemblages of fossil reptiles especially in the Mesozoic. Recent work has shown a much greater diversity of such Mesozoic ...

New research has uncovered a species of hook-toothed lizard that lived about 167 million years ago and has a confusing set of features seen in snakes and geckos—two very distant relatives. One of the ...

An artist's impression of the Late Cretaceous crocodilian Deinosuchus riograndensis and a much smaller, early alligator relative. Márton Szabó More than 75 million ...

Rocks have been found to hold many traces of Earth's ancient history, but usually geologists have to seek them out. Every once in a while, however, these imprints of times past are found by ...