A new study reveals a previously overlooked diversity of small dinosaurs, including the smallest known plant-eating dinosaur species from Canada. The research team identified Albertadromeus syntarsus as a speedy runner that lived in what is now southern Alberta during the Late Cretaceous period, approximately 77 million years ago.
New fossil discoveries shed light on the history of animal distributions between the Americas, revealing that caimans dispersed north from South America by the early Miocene. The presence of fossils in Panama supports a recent hypothesis that Central and South America were closer together than previously thought.
A new fossil discovery reveals a bird with specialized teeth for eating hard prey, greatly expanding the known diversity of tooth shape in early birds. The find suggests that dietary differences may have contributed to the decline of enantiornithine birds during the Cretaceous period.
A second specimen of Ernanodon antelios sheds new light on the mysterious ancient mammal, revealing it was highly specialized for digging. The fossil skeleton provides key information about its habits, lifestyle, and affinities, resolving long-standing controversies in the scientific community.