Barnsdall Formation
35 distinct taxa, from 143 fossil occurrences the Paleobiology Database records under this name, spanning 306–304 Mya.
Oklahoma · US
35 taxa · 143 fossils · 306–304 MyaFiled under the Lansing Group. Members recorded: Eudora Shale.
Macrostrat places this rock in the Ochelata Group, and dates it 306–304 Ma. Macrostrat’s own record
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5 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
- Stellarocrinus
- Cromyocrinidae
- Cymbiocrinidae
- Delocrinus
- Elibatocrinus
- Erisocrinus
- Exoriocrinus
- Pirasocrinidae
- Scytalocrinidae
- Ampelocrinidae
- Apographiocrinus
- Cibolocrinus
- Glaukosocrinus
- Euonychocrinus
- Exocrinus
- Galateacrinus
- Graffhamicrinus
- Kallimorphocrinus
- Laudonocrinidae
- Paramphicrinus
- Plummericrinus
- Ulocrinus
- Pseudorthoceras knoxense
- Apographiocrinus typicalis
- Erisocrinus typus
- Exocrinus multirami
- Gastropoda
- Glabrocingulum (Ananias) tularosaensis
- Glabrocingulum grayvillense
- Glaphyrites
- Lecythiocrinus
- Phestia
- Stenopecrinus
- Terpnocrinus
- Trepospira illinoisensis
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.