Plant slides include gingkos, metasequoia and palms. Green River Formation specimens show (angiosperms) maple, poplar, sycamore; (insects) flies, dragonflies, butterflies, crickets, beetles, ants; (fish) Knightia, Priscacara, Mioplosus. Mammals include Uintatherium, Hyracotherium, Eohippus, Orohippus, Smilodectes.
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