Two species of early mammals show transitional features of the teeth and jaw bones that came to define living mammals. Both fossils help further our understanding of members of the mammalian lineage in the Late Triassic.
Tritylodontids—a small, highly specialized group of animals, were previously thought to had gone extinct in Late Jurassic, as they shared the same niche with the more adaptable early mammals.
Prehistoric fossils discovered in China show that tiny creatures resembling moles and monkeys lived in trees and below ground as dinosaurs roamed the earth.
