Day 13: Ekaltadelta ima
This funny lil marsupial may have once lived in the Oligocene-Miocene in Australia, but they actually have a surviving relative called the Musky Rat Kangaroo🦘

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Andrewsarchus mongoliensis trotting into day 10 of

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Day 11: Andrewsarchus mongoliensis

This massive carnivore from the Eocene was actually an even-toed ungulate, more closely related to modern hippos and the fearsome, extinct entelodonts than any group of carnivoran mammals!

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Day 10: Megacerops coloradensis
This huge Brontothere lived in North America during the Eocene epoch. Despite looking like a rhinoceros they were more closely related to modern horses!

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day 9 Megacerops colorodensis here with a friendly flehmen

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Day 9. Aegyptocetus

I should draw this guy more often, W creature design

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Another big family on day 7 of early pantodont Alcidedorbignya inopinata!

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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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Day 7: Lesmesodon edingeri was a small species of proviverid hyaenodont mammal, who lived in the famous Messel Pit in Germany during the Eocene epoch.

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Day 6: Stylinodon
This taeniodont mammal is pretty cool, like a short-faced badger crossed with an aardvark! These weird fellas lived in the Eocene epoch of North America

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The Crazy Beast! Adalatherium hui for day 4 of

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Day 2: Juramaia going on a run! I like to think these cute lil guys were a mix of tree shrew, rat and possum rolled into one. Based on a muscoskeletal reconstruction of the same animal by

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Juramaia sinensis, "Jurassic mother from Ch Juramaia sinensis, "Jurassic mother from China,” is the earliest known eutherian (placental) mammal. Their discovery pushed back the split between eutherians, marsupials, and monotremes by 35my.

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Day 1 of - Cynognathus! (Including yours truly for scale) Thanks to for making this cool art challenge :)
Going forward, I’m open to feedback on how faithful my reconstructions are since I am no expert on their life appearance😅

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It's once again Here's not-quite-a-mammal Cynognathus crateronotus for day 1

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