Kanwaka Formation
34 distinct taxa, from 51 fossil occurrences the Paleobiology Database records under this name, spanning 304–288 Mya.
Nebraska, Kansas, Iowa · US
34 taxa · 51 fossils · 304–288 MyaFiled under the Shawnee Group. Members recorded: Stull Shale, Stull.
Macrostrat places this rock in the Shawnee Group, and dates it 303 Ma. Macrostrat’s own record
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10 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
- Delocrinus vulgatus
- Graffhamicrinus magnijkus
- Graffhamicrinus subcoronatus
- Aglaocrinus compactus
- Exocrinus multirami
- Hollinella
- Sublobalocrinus
- Adacrinus edema
- Aesiocrinus detrusus
- Allosocrinus bronaughi
- Amphissites dattonensis
- Arrectocrinus iowensis
- Bairdia kanwakensis
- Bairdia whortani
- Cavellina marmorea
- Haeretocrinus missouriensis
- Healdia compressa
- Healdia simplex
- Macrocypris garrisonensis
- Monoceratina lewisi
- Moorites minutus
- Parulocrinus blairi
- Penniretepora nodolineata
- Pirasocrinidae
- Plaxocrinus crassidiscus
- Polusocrinus rosa
- Pseudobythocypris pediformis
- Pseudoparaparchites kansensis
- Sciadiocrinus humilis
- Stellarocrinus stillativus
- Sulcella sulcata
- Synarmocrinus iatani
- Ulocrinus
- Vertigocrinus parilis
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.