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 ...

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, belong to a group of ancient ...

Slow start A near complete fossil of an ancient mammal proves it wasn't much of a runner. But with the dinosaurs gone, it really didn't need to be. Many of the mammals that emerged right after the non ...

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 ...

Millions of years before jazz filled New Orleans streets or fishing boats were harvesting shrimp in the Gulf, Louisiana was home to terrifying sea monsters, a tenacious mammal and a seismic cataclysm ...