Casper Formation
21 distinct taxa, from 22 fossil occurrences the Paleobiology Database records under this name, spanning 304–294 Mya.
Wyoming · US
21 taxa · 22 fossils · 304–294 MyaMacrostrat dates this rock 320–281 Ma. Macrostrat’s own record
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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
- Stenopoceras abundum
- Brachiopoda
- Chonetes
- Composita ovata
- Composita subtilita
- Liroceras
- Marginifera haydenensis
- Meekella attenuata
- Metacoceras
- Metacoceras knighti
- Metacoceras sulciferum
- Myalina (Myalina) aviculoides
- Neospirifer bakeri
- Parajuresania nebrascensis
- Pseudorthoceras
- Pseudorthoceras knoxense
- Reticulatia americana
- Solenochilus brammeri
- Tainoceras wyomingense
- Triticites ventricosus
- Wellerella
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.