Dewey Formation
16 distinct taxa, from 19 fossil occurrences the Paleobiology Database records under this name, spanning 307–304 Mya.
Kansas, Iowa, Oklahoma · US
16 taxa · 19 fossils · 307–304 MyaMembers recorded: Quivira shale, Quivira Shale, Quivira.
Macrostrat places this rock in the Kansas City Group. Macrostrat’s own record
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4 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
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.