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 ...

Reconstruction of a species of Swaindelphys discovered in Texas’ Big Bend National Park and described paleontologists from the University of Kansas. LAWRENCE — They say everything’s bigger in Texas.

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, ...

A mammal phylogeny with colors depicting the diet of living species and their ancestors; silhouettes of myrmecophagous mammals surround the tree. An inset diagram in the upper right illustrates ...

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 ...