Union Valley Formation
10 distinct taxa, from 13 fossil occurrences the Paleobiology Database records under this name, spanning 323–315 Mya.
Oklahoma · US
10 taxa · 13 fossils · 323–315 MyaMacrostrat places this rock in the Springer Group, and dates it 323–320 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
What else lived thenRank the rock of a period
Counts are of occurrence records, which measure the rock and the fieldwork together.