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What’s the hottest Earth has ever been? | EarthSky 12/2/16 Earth’s hottest periods occurred before humans existed. Around the time of the Paleocene-Eocene Thermal Maximum, much of the continental United States had a sub-tropical environment-fossil palm is from Fossil Butte National Monument, Wyoming:via U.S. National Park Service.

What’s the hottest Earth has ever been? | EarthSky 12/2/16 Earth’s hottest periods occurred before humans existed. Around the time of the Paleocene-Eocene Thermal Maximum, much of the continental United States had a sub-tropical environment-fossil palm is from Fossil Butte National Monument, Wyoming:via U.S. National Park Service.

These dinosaur footprints were discovered in the African nation of Namibia.

These Dinosaur Footprints are Ancient and Adorable

These dinosaur footprints were discovered in the African nation of Namibia.

Archaeopteryx Berlin specimen is considered the most famous fossil in the world. It is about 150 Ma & was discovered in limestone deposits in Eichstaett, Bavaria. Archaeopteryx has bird flight feathers, but also has reptile features such as a tail bone & claws on the wing bones

Archaeopteryx Berlin specimen is considered the most famous fossil in the world. It is about 150 Ma & was discovered in limestone deposits in Eichstaett, Bavaria. Archaeopteryx has bird flight feathers, but also has reptile features such as a tail bone & claws on the wing bones

Sphenodiscus lenticularis, Fox Hills Formation, South Dakota. Late Cretaceous (~ 70 mya). Both sides of this handsome specimen display the extraordinarily intricate suture patterns that are characteristic of this species. Also evident is part of the beautifully iridescent nacreous layer. A laterally flattened ammonite, this animal is thought to have been a relatively fast swimmer.

Sphenodiscus lenticularis, Fox Hills Formation, South Dakota. Late Cretaceous (~ 70 mya). Both sides of this handsome specimen display the extraordinarily intricate suture patterns that are characteristic of this species. Also evident is part of the beautifully iridescent nacreous layer. A laterally flattened ammonite, this animal is thought to have been a relatively fast swimmer.

'Biggest dinosaur ever' discovered. Fossilized bones of a dinosaur believed to be the largest creature ever to walk the Earth have been unearthed in Argentina, paleontologists say. Based on its huge thigh bones, it was 40m (130ft) long and 20m (65ft) tall.

'Biggest dinosaur ever' discovered

'Biggest dinosaur ever' discovered. Fossilized bones of a dinosaur believed to be the largest creature ever to walk the Earth have been unearthed in Argentina, paleontologists say. Based on its huge thigh bones, it was 40m (130ft) long and 20m (65ft) tall.

Pangea

New illustrated map of the Pangaea supercontinent is right out of the Middle Ages

Stromatolites -Western Australia. Living fossils

Stromatolites in Hamelin Pool, Near Monkey Mia, Hamelin Bay, Australia