Reconstruction of a Paleocene mammal that lived around 65 million years ago. Credit: Sarah Shelley The evolution of ankle and foot bones into different shapes and sizes helped mammals adapt and thrive ...

“A 62-million-year-old skeleton of this quality and completeness offers novel insights into mixodectids, including a much clearer picture of their evolutionary relationships,” study co-author and Yale ...

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 ...

This article was published in Scientific American’s former blog network and reflects the views of the author, not necessarily those of Scientific American Palaeontologists have taken a closer look at ...

(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, ...

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 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 ...

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, ...

The fossils, found at Big Bend National Park in Texas, belong to a group of ancient near-marsupials from the Paleocene period that scientists call Swaindelphys, according to a paper published last ...