Grand Rapids Formation

10 distinct taxa, from 28 fossil occurrences the Paleobiology Database records under this name, spanning 110–101 Mya.

Alberta · CA

10 taxa · 28 fossils · 110–101 Mya

Filed under the Mannville Group.

Macrostrat dates this rock 109–108 Ma. Macrostrat’s own record

Grand Rapids Formation — 53.77°N, 113.06°WGrand Rapids Formation — 53.73°N, 112.11°W

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2 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.