Upham Formation
11 distinct taxa, from 14 fossil occurrences the Paleobiology Database records under this name, spanning 451–450 Mya.
Texas, New Mexico · US
11 taxa · 14 fossils · 451–450 MyaFiled under the Montoya Group. Members recorded: Second Value.
Macrostrat places this rock in the Montoya Group, and dates it 458–450 Ma. Macrostrat’s own record
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5 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.