Fossil Evidence Pushes Back Origin of Live Birth by 90 Million Years
Paleontologists studying a 236-million-year-old cynodont fossil from Argentina say they have found the earliest evidence yet of viviparity…
244-Million-Year-Old Fossil Preserves Earliest Reptilian Digestive System
An exquisitely preserved specimen of Austronaga minuta, a small, long-necked marine reptile from the Triassic of China, contains…
Tiny Triassic Reptile Sheds Light on Early Lizard Evolution
Today, lepidosaurs — the reptile group that includes lizards, snakes and New Zealand’s tuatara — are among the…
Ancient Oceans Began Losing Oxygen Millions of Years before End-Triassic Mass Extinction
Chemical traces preserved in ancient rocks indicate that marine environments were deteriorating long before the catastrophe that wiped…
Toothless, Bipedal Crocodile Relative Lived in New Mexico 212 Million Years Ago
Paleontologists have described a new species of bipedal shuvosaurid archosaur from New Mexico, shedding light on a group…
Museum Fossil Reveals Triassic Crocodile Cousin with Powerful Jaws
CT scans of a decades-old specimen from the Yale Peabody Museum of Natural History show a new species…
CT Scans Solve Decades-Old Mystery of Triassic Cynodont
Known from a single skull discovered in South Africa in 1952, Cistecynodon parvus has been shuffled across the…
Early Triassic Cyclidan Crustacean Had Powerful Jaws
Paleontologists have described a new species of enigmatic cyclidan crustacean on the basis of three well-preserved specimens from…
Early Triassic Fossils from Australia Uncover Diverse Marine Amphibian Community
Several 250-million-year-old specimens from museum collections in Australia and the United States have revealed a surprising diversity of…
Small Triassic Dinosaur from Brazil Sheds New Light on Sauropodomorph Growth Strategies
Paleontologists have unearthed fossilized bones of one of the smallest sauropodomorph dinosaurs from the Late Triassic of southern…
Early Long-Necked Marine Reptile Unearthed in China
The exceptionally long neck of Lijiangosaurus yongshengensis contained 42 cervical vertebrae, according to a research team led by…
New Species of Triassic Carnivorous Dinosaur Identified in Argentina
A new genus and species of theropod dinosaur being named Anteavis crurilongus has been described by a team…