Box Butte Formation
39 distinct taxa, from 52 fossil occurrences the Paleobiology Database records under this name, spanning 19–16 Mya.
Nebraska · US
39 taxa · 52 fossils · 19–16 MyaMembers recorded: Red Valley, Dawes Clay, basal Red Valley.
Loading coastlines…
2 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
- Acritohippus tertius
- Archaeohippus
- Cynarctoides acridens
- Merycodontinae
- Brachyerix macrotis
- Equinae
- Mylagaulidae
- Sinclairomeryx riparius
- Accipitridae
- Acritohippus isonesus
- Anchitheriinae
- Aphelops
- Barbouromeryx
- Bouromeryx
- Bouromeryx americanus
- Bouromeryx submilleri
- Brachycrus
- Brachycrus laticeps
- Brachycrus siouense
- Cynelos
- Galushaceras levellorum
- Hypohippus pertinax
- Leptocyon leidyi
- Menoceras barbouri
- Merychyus elegans
- Metatomarctus canavus
- Michenia
- Miomustela
- Osbornodon iamonensis
- Paracosoryx
- Paracosoryx wilsoni
- Parahippus cognatus
- Paramiolabis tenuis
- Phlaocyon leucosteus
- Protolabis saxeus
- Protomarctus optatus
- Rhinocerotidae
- Tanymykter longirostris
- Teleoceras americanum
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.