Ector Chalk
16 distinct taxa, from 20 fossil occurrences the Paleobiology Database records under this name, spanning 90–86 Mya.
Texas · US
16 taxa · 20 fossils · 90–86 MyaFiled under the Austin Group.
Macrostrat places this rock in the Austin Group, and dates it 91–87 Ma. Macrostrat’s own record
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4 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.