Palaeocene

Titanic dragonflies, searing global temperatures, and more powerful winds would be just some of the things you'd contend with in a world with double the atmospheric density.

Global warming is not solely a modern-day occurrence but has been a prominent feature of Earth's geological history for millennia. One such event occurred approximately 40 million years ago, lasting ~400,000 years, known as the Middle Eocene Climatic Optimum (MECO).

"A very remarkable series of events took place during the late Miocene between 5.96 and 5.33 million years ago."

Primates, whom humans evolved from, rabbits and hares, dogs and cats were shown to have evolved just before the mass extinction, so they coexisted with dinosaurs.

The North Dakota Geological Survey has drafted a report that provides a road map to explore lignite coal and organic-rich mudstone that contains enriched critical minerals.

Trogons (Trogoniformes) are the only group of birds with a heterodactyl foot, in which the second toe is permanently reversed.

The two oldest-known fossil skeletons of bats, unearthed in southwestern Wyoming and dating to at least 52 million years ago, are providing insight into the early evolution of these flying mammals — today represented by more than 1,400 species.

Patagorhynchus pascuali represents the first Cretaceous toothed monotreme from the supercontinent Gondwana.

The extinction of the dinosaurs left an ecological hole that was quickly filled by mammals, which rapidly developed larger bodies. Now it seems this evolutionary growth spurt was a result of living life in fast forward

The enormous impact crater dates to 58 million years ago.

Earth's hottest periods occurred before humans existed. Those ancient climates would have been like nothing our species has ever seen.

As a kid, it was tough for me to grasp the massive time scale of Earth's history. Now, with nearly two decades of experience as a geologist, I think one of the best ways to understand our planet's history and evolution is by condensing the entire timeline into a single calendar year. It's not a new ...

At the end of the Paleocene and beginning of the Eocene epochs, between 59 to 51 million years ago, Earth experienced dramatic warming periods, both gradual periods stretching millions of years and sudden warming events known as hyperthermals.

The first jungles dense with flowering plants only formed after an asteroid impact wiped out the giant creatures

Paleontologists have discovered the fossilized remains of a mammal species which walked the Earth some 65.5 million years ago.

Paleontologists have described a new species of the extinct lamniform shark genus Palaeohypotodus based on 17 fossilized teeth found in Alabama, the United States.

Scientists are using a UC Santa Cruz greenhouse to recreate the mass extinction that wiped out the dinosaurs. They want to learn why some species survived when so many did not.

This discovery reveals new information about this penguin's history on the planet.

They say it would've weighed 350 pounds. That's more than an ostrich.

One of the two new species, Kumimanu fordycei, weighed up to 160 kg and may have been the largest penguin ever to have lived.