Lizard Dropped Its Tail 99 Million Years Ago, Amber Preserved Evidence
A tiny piece of amber from Myanmar has captured a defensive maneuver that lizards still use today: shedding…
Small, Chicken-Like Dinosaur May Have Had a Jaw Built for Fruit
Fossils from Montana show a small oviraptorosaur with a jaw that slid front to back, a feature shared…
New Species of Freshwater Mosasaur Identified in France
Fossils from southeastern France reveal a previously unknown, roughly 2.5-m (8-foot) long tethysaurine mosasaur that appears to have…
Scientists find evidence for several Earth axis shifts during the age of dinosaurs
A new study finds evidence that Earth may have undergone several episodes of rapid true polar wander during…
Dinosaur-Era Mammal Swam Like Platypus and Replaced Its Teeth Multiple Times
Dongoconodon platycauda, a small eutriconodontan mammal that lived alongside dinosaurs in what is now northeastern China paddled through…
New Feathered Dinosaur Suggests Flight Evolved More Than Once among Birds’ Closest Relatives
Norellraptor barsboldi, a new species of small microraptorine dinosaur from the 120-million-year-old rock beds of China’s Liaoning province,…
120-Million-Year-Old Fossil Pushes Back Origin of Marsupial Lineage
A new species of deltatheroidan mammal from China may be the oldest confirmed ancestor of marsupials yet found,…
Titanosaurs Nested Far South of Equator, Fossil Eggshells Reveal
Paleontologists working in Patagonia, Argentina, have uncovered fossilized eggshells that push the known range of dinosaur nesting deeper…
New Therizinosaurian Dinosaur Unearthed in China
Paleontologists have described a new genus and species of therizinosaur based on a nearly complete skeleton found in…
Tyrannosaurus rex Had Mammal-Like Body Temperature, Study Finds
A new analysis of Tyrannosaurus rex teeth indicates the ancient predator maintained a body temperature of about 36.3 degrees…
Exceptionally Preserved Bird Feathers Found in 66-Million-Year-Old Dinosaur Coprolite
Paleontologists in Montana have discovered remarkably preserved feathers of an ancient aquatic bird inside a fossilized dinosaur dropping,…
Paleontologists Discover First-Ever Adult Tyrannosaurus rex Trackway
Paleontologists in North Dakota have unearthed a set of 66.5-million-year-old fossilized footprints that can be confidently attributed to…