Perham Formation
9 distinct taxa, from 16 fossil occurrences the Paleobiology Database records under this name, spanning 427–423 Mya.
Maine · US
9 taxa · 16 fossils · 427–423 MyaMembers recorded: upper.
Macrostrat dates this rock 443–420 Ma. Macrostrat’s own record
Loading coastlines…
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.