Chalk Butte Formation
19 distinct taxa, from 22 fossil occurrences the Paleobiology Database records under this name, spanning 9.4–4.7 Mya.
Oregon · US
19 taxa · 22 fossils · 9.4–4.7 MyaMacrostrat places this rock in the Idaho Group, and dates it 5.3–2.6 Ma. Macrostrat’s own record
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1 distinct localities, where the rock is now rather than where it was laid down. Tectonics draws the world it belonged to.
When
What has been found
- Eucyon davisi
- Hypolagus vetus
- Scapanus proceridens
- Camelidae
- Copemys esmeraldensis
- Dinohippus spectans
- Dipoides
- Dipoides vallicula
- Diprionomys parvus
- Microtoscoptes disjunctus
- Perognathinae
- Peromyscus antiquus
- Plionictis oregonensis
- Pliosaccomys magnus
- Postcopemys valensis
- Soricidae
- Spermophilus
- Tsaphanomys shotwelli
- Vespertilionidae
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.