Pitkin Formation
77 distinct taxa, from 232 fossil occurrences the Paleobiology Database records under this name, spanning 335–323 Mya.
Arkansas, Oklahoma · US
77 taxa · 232 fossils · 335–323 MyaMembers recorded: Lower.
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15 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
- Inflatia
- Cleiothyridina
- Composita
- Diaphragmus
- Eumetria
- Ovatia
- Anthracospirifer
- Euloxoceras angustius
- Orthotetes
- Reticycloceras croneisi
- Rayonnoceras protentum
- Reticulariina
- Athyris
- Dielasma
- Punctospirifer
- Stenoglaphyrites involutus
- Torynifer
- Buxtonia
- Pseudorthoceras stonense
- Echinoconchus
- Michelinoceras wapanuckense
- Richardsonites richardsonianus
- Schizophoria
- Annelida
- Aphralysia
- Archaeolithophyllum
- Archimedes
- Asphaltina
- Barytichisma
- Bivalvia
- Brachiopoda
- Cravenoceras
- Crinoidea
- Eumorphoceras bisulcatum
- Garwoodia
- Gastropoda
- Girvanella
- Hexagonellidae
- Mitorthoceras crebriliratum
- Orbiculoidea
The 40 most often recorded, of 77.
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.