Mammal enamel: Toothy analysis identifies vegetation of ancient Nebraska - Phys.org

Between 18 million and 12 million years ago, the Great Plains supported an unprecedented variety of hooved mammal species that browsed on leafy vegetation—up to three times more than in any modern ecosystem, including the densest rainforests. That diversity, …

Between 18 million and 12 million years ago, the Great Plains supported an unprecedented variety of hooved mammal species that browsed on leafy vegetationup to three times more than in any modern eco… [+2522 chars]

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