Cuchillo Negro Formation
11 distinct taxa, from 15 fossil occurrences the Paleobiology Database records under this name, spanning 359–299 Mya.
New Mexico · US
11 taxa · 15 fossils · 359–299 MyaFiled under the Mud Springs Group.
Macrostrat places this rock in the Mud Springs Group, and dates it 315–307 Ma. Macrostrat’s own record
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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.