Sarkastodon was a large meat-eating mammal from the middle Eocene, 40 million years ago. At 3m long and weighing possibly up to 800kg it would have been around the size of a very large polar bear! It wasn’t closely related to any mammal alive today.

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Day 8: Alcidedorbignya inopinata
This basal Pantodont lived in the Santa Lucia formation in Bolivia during the early Paleocene, shortly after the Chicxulub Impactor wiped out the majority of large reptiles across the planet.

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First image is a spectacular illustration by the talented artist . Long ago in ancient Egypt, during the late Eocene, a pair of Arsinoitherium zitteli emerge into a clearing within a dense rainforest. Arsinoitherium may look rhinoceros-like thanks to the

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Kutchicetus minimus was an early whale from the Eocene, & at 2.5m long, it was probably the smallest cetacean of its time. It was semi-aquatic, like an otter.

(Credit Roman Uchytel)

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With origins stretching as far back as the early Eocene, yet another abberant group of dinosaurs can be found in Sister Earth.
The type genus, Psittacocetus is the largest recorded psittacocetid so far, with elder individuals surpassing the forty foot mark and—
(1/3)

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The first densely sampled of the predatory click-beetle tribe Drilini reveals a gradual evolutionary transition to soft-bodiedness, an origin in the Late & multiple &
Find out more in the October issue: https://t.co/NjRPoqYOq3

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Embolotherium andrewsi was a large herbivore from the Eocene, similar to a modern rhinoceros.

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