Paleontologists have described what they say is the first fully marine species of a stem amphibian, Gerrothorax maritimus, based on two nearly complete...
A single bone from southern Brazil indicates that herrerasaurids, among the first large meat-eating dinosaurs, persisted after the fauna around them changed.
An...
New research suggests that the ancestors of alligators and crocodiles stayed loyal to a warm climate through mass extinctions and hothouse worlds, a loyalty...
A fossil theropod vertebra about the length of a thumb, found in the Algarve region in southern Portugal, may be the oldest dinosaur remains ever discovered...
Paleontologists have identified a new species of ancient, distant mammal relative from two fossil specimens found decades apart in the Manda Beds of Tanzania....
A new genus and species of sauropterygian reptile that lived during the Triassic period, some 245 million years ago, has been identified from a nearly...
Paleontologists studying a 236-million-year-old cynodont fossil from Argentina say they have found the earliest evidence yet of viviparity (live birth)...
An exquisitely preserved specimen of Austronaga minuta, a small, long-necked marine reptile from the Triassic of China, contains a fossilized stomach,...
An international team of paleontologists has identified a new species of early sauropodomorph dinosaur in Zimbabwe, adding to growing evidence that southern...
Paleontologists working in Brazil have identified a previously unknown species of archosauriform that lived about 240 million years ago and may belong...
Chemical traces preserved in ancient rocks indicate that marine environments were deteriorating long before the catastrophe that wiped out vast numbers...
Paleontologists have described a new species of bipedal shuvosaurid archosaur from New Mexico, shedding light on a group of creatures that roamed North...
Paleontologists in Brazil have identified a new genus and species of hyperodapedontine rhynchosaur — an extinct lineage of beaked, herbivorous reptiles...
CT scans of a decades-old specimen from the Yale Peabody Museum of Natural History show a new species of short-snouted crocodylomorph with unusually strong...
A new genus and species of carnivorous herrerasaurian dinosaur has been described from an incomplete but well-preserved skull found in northern New Mexico,...
Using high-resolution CT and synchrotron scanning, paleontologists confirmed that the fossilized specimen from the Early Triassic of the South African...
Known from a single skull discovered in South Africa in 1952, Cistecynodon parvus has been shuffled across the evolutionary tree: described at various...
Paleontologists have described a new species of enigmatic cyclidan crustacean on the basis of three well-preserved specimens from the Early Triassic Guiyang...
Fossils from the Chinle Formation of Petrified Forest National Park in Arizona, the United States, reveal that Sonselasuchus cedrus, a species of shuvosaurid...
