Greyson Formation

16 distinct taxa, from 20 fossil occurrences the Paleobiology Database records under this name, spanning 1600–1400 Mya.

Montana · US

16 taxa · 20 fossils · 1600–1400 Mya

Macrostrat places this rock in the Missoula Group, in the Belt Supergroup. Macrostrat’s own record

Greyson Formation — 46.49°N, 111.25°WGreyson Formation — 46.67°N, 110.88°WGreyson Formation — 46.33°N, 111.19°W

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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.

What has been found

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Counts are of occurrence records, which measure the rock and the fieldwork together.