Adapidae. Late Early Eocene, Lost Cabin Age. Green River Formation. Wyoming, USA. Primates are a warmth-loving Order. Monkeys and apes are not native to North America today, but it was different in the Green River habitats. Primitive primates – lemurs and tarsioid – climbed the tropical trees, eating fruit and chasing bugs. Notharctus tenebrosus was a long-legged leaper almost identical in body plan to some of the lemurs in modern-day Madagascar.


  • Title: Lemur (Notharctus)

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