REFINE     Who What Where When     REMOVE Mesohippus Brule formation WHAT Orella member (2) Paleontology   (2) White River group (2) WHERE Dawes county, NE (2) WHEN Orellan (2)

REFINE  Browse All : Mesohippus and Brule formation 1-2 of 2 Brule Fm. Oligocene 30-...   Age Brule Fm. Oligocene 30-34 mya Brule Fm. Oligocene 30-...   Age Brule Fm. Oligocene 30-34 mya 1-2 of 2

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