Mount Mark Formation
11 distinct taxa, from 16 fossil occurrences the Paleobiology Database records under this name, spanning 294–290 Mya.
British Columbia · CA
11 taxa · 16 fossils · 294–290 MyaMacrostrat places this rock in the Buttle Lake Group, and dates it 323–274 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.