Chon Aike Formation
4 distinct taxa, from 9 fossil occurrences the Paleobiology Database records under this name, spanning 175–143 Mya.
Santa Cruz · AR
4 taxa · 9 fossils · 175–143 MyaFiled under the Bahia Laura Group.
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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.