Chalk Hills Formation
38 distinct taxa, from 60 fossil occurrences the Paleobiology Database records under this name, spanning 23–4.7 Mya.
Idaho, Oregon · US
38 taxa · 60 fossils · 23–4.7 MyaFiled under the Idaho Group.
Macrostrat places this rock in the Idaho Group, and dates it 8.3–5.8 Ma. Macrostrat’s own record
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7 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
- Spermophilus
- Alforjas
- Aphelops mutilus
- Borophagus
- Camelidae
- Cormohipparion
- Dinohippus spectans
- Dipoides wilsoni
- Emys marmorata
- Felidae
- Hemiauchenia
- Heteromyidae
- Hipparionini
- Leporidae
- Megatylopus gigas
- Mustelidae
- Puma lacustris
- Talpidae
- Tayassuidae
- Teleoceras fossiger
- Accipitridae
- Anatidae
- Antilocapridae
- Anura
- Aquila
- Basirepomys pliocenicus
- Ciconiiformes
- Dipoides
- Mesodictyon magnum
- Mesodictyon undulatum
- Neotragocerus
- Oncorhynchus ketopsis
- Pliosaccomys
- Proboscidea
- Procamelus
- Rhinocerotidae
- Sciuridae
- Vulpes
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.