A roughly 99-million-year-old piece of amber from northern Myanmar contains the skull of what appears to represent the smallest known dinosaur of the Mesozoic era.

Carbon cycle modeling and paleotemperature records argue that an asteroid impact—not volcanic fumes—was the main driver of the dinosaur die-off.

These ancient insects ate dinosaur feathers during the Cretaceous period.

An ancient animal’s hammer, anvil, and stirrup bones are at the base of the jaw but completely detached from it.

A 99-million-year-old beetle preserved in amber alongside grains of pollen likely pollinated prehistoric plants.

Scientists have found the 99-million-year-old remains of a baby snake.

Paleontologists find fossils from at least seven species of the flying reptiles in Morocco.

This discovery closes a 170-million-year gap in the fossil record.

The fossil booty includes some eggs with embryo remains inside, and points to group nests involving long-term parental care.