Fountain Formation
12 distinct taxa, from 16 fossil occurrences the Paleobiology Database records under this name, spanning 323–313 Mya.
Colorado · US
12 taxa · 16 fossils · 323–313 MyaMacrostrat dates this rock 320–295 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.