Mixodectes belonged to an extinct family known as mixodectids and lived during the Paleocene epoch. This geological epoch ...

The six-mile-wide asteroid punched a one-way ticket toward extinction for all non-avian dinosaurs. Some 66 million years ...

However, the Cretaceous–Paleogene extinction event was not the worst loss of life in our planet’s history. That distinction belongs to the Permian-Triassic extinction or the Great Dying.

Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery.

A discovery about the dark fur of early mammals confirms long-held theories about their evolutionary and ecological behavior.

After the Cretaceous–Paleogene extinction that killed off most of the dinosaurs, for example, the top carnivores for a while were not the mammals that ultimately replaced them but giant ...

Today’s extinction rates are sky-high ... creatures are buried beneath a conspicuous layer of sediment or rock that geologists call the Cretaceous-Paleogene (K-Pg) boundary. The layer is typically ...

Lyson at Denver Museum of Nature & Science in Denver, CO, and colleagues was titled, "Exceptional continental record of biotic recovery after the Cretaceous-Paleogene mass extinction." ...

An international team of scientists has synchronized key climate records from the Atlantic and Pacific Oceans to unravel the sequence of events during the last million years before the extinction of ...