Researchers in Colorado have discovered the fossilized skull of a tiny, now-extinct mammal that lived around 65 million years ago, in the aftermath of the dinosaur-killing asteroid strike. The newly ...

For more than 140 years, Mixodectes pungens, a species of small mammal that inhabited western North America in the early Paleocene, was a mystery. What little was known about them had been mostly ...

The evolutionary journey from primitive plesiadapiforms to early primates during the Paleocene and Eocene epochs represents a critical chapter in mammalian history. Fossil records from these periods ...

An abrupt episode of global warming and major changes in plant and animal life marked the transition between the Paleocene and Eocene epochs about 55 million years ago. Several groups of mammals, ...

BIG BEND NATIONAL PARK, Texas — Paleontologists have found fossilized remains of a giant possum-like mammal that lived 60 million years ago. The fossils, found at Big Bend National Park in Texas, ...

Paleontologists uncovered another rare fossil in Texas. This time, it's a 60-million-year-old fossil of a giant possum-like mammal that is reported to be the largest marsupial found in the North ...

Fossils and the origin of mammals -- The Paleocene -- The Eocene -- The Oligocene -- The Miocene -- The Pliocene -- Australia -- South America -- The Pleistocene ice age -- The age of man -- Taxonomic ...