Chisholm Formation
8 distinct taxa, from 10 fossil occurrences the Paleobiology Database records under this name, spanning 510–500 Mya.
Utah · US
8 taxa · 10 fossils · 510–500 MyaMembers recorded: Middle Limestone, Upper Shale.
Macrostrat dates this rock 509–507 Ma. Macrostrat’s own record
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1 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.