Alapah Formation
4 distinct taxa, from 9 fossil occurrences the Paleobiology Database records under this name, spanning 347–335 Mya.
Alaska · US
4 taxa · 9 fossils · 347–335 MyaFiled under the Lisburne Group. Members recorded: Chert-shale, Limestone.
Macrostrat places this rock in the Lisburne Group, and dates it 343–322 Ma. Macrostrat’s own record
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6 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.