San Pedro Arroyo Formation
12 distinct taxa, from 17 fossil occurrences the Paleobiology Database records under this name, spanning 237–201 Mya.
New Mexico · US
12 taxa · 17 fossils · 237–201 MyaFiled under the Chinle Group. Members recorded: Ojo Huelos.
Macrostrat places this rock in the Chinle Group, and dates it 237–227 Ma. 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.