Gettysburg Formation
14 distinct taxa, from 19 fossil occurrences the Paleobiology Database records under this name, spanning 237–201 Mya.
Pennsylvania, Maryland · US
14 taxa · 19 fossils · 237–201 MyaFiled under the Chatham Group. Members recorded: Heidlersburg.
Macrostrat places this rock in the Chatham Group, in the Newark Supergroup. Macrostrat’s own record
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3 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.