Chadron Formation

340 distinct taxa, from 718 fossil occurrences the Paleobiology Database records under this name, spanning 37–32 Mya.

Nebraska, South Dakota, North Dakota, Wyoming · US

340 taxa · 718 fossils · 37–32 Mya

Filed under the White River Group. Members recorded: Big Cottonwood Creek, Peanut Peak, Chalky Buttes, Ahearn, Crazy Johnson, Yoder, upper.

Macrostrat places this rock in the White River Group. Macrostrat’s own record

Chadron Formation — 43.75°N, 102.67°WChadron Formation — 43.60°N, 102.45°WChadron Formation — 42.00°N, 104.20°WChadron Formation — 42.40°N, 103.80°WChadron Formation — 43.30°N, 102.50°WChadron Formation — 43.92°N, 102.58°WChadron Formation — 45.50°N, 102.50°WChadron Formation — 42.80°N, 103.10°WChadron Formation — 42.80°N, 103.40°WChadron Formation — 43.00°N, 104.50°WChadron Formation — 42.90°N, 105.20°WChadron Formation — 43.20°N, 103.20°WChadron Formation — 45.47°N, 112.62°WChadron Formation — 46.10°N, 103.30°WChadron Formation — 45.50°N, 103.10°WChadron Formation — 43.83°N, 102.08°WChadron Formation — 43.65°N, 102.82°WChadron Formation — 42.86°N, 103.57°WChadron Formation — 42.78°N, 103.57°WChadron Formation — 40.82°N, 103.73°WChadron Formation — 43.75°N, 102.77°WChadron Formation — 43.78°N, 102.70°WChadron Formation — 43.78°N, 102.55°WChadron Formation — 43.75°N, 103.20°WChadron Formation — 41.96°N, 104.38°WChadron Formation — 42.67°N, 105.31°WChadron Formation — 42.97°N, 105.50°WChadron Formation — 43.00°N, 104.23°WChadron Formation — 42.69°N, 103.42°WChadron Formation — 45.90°N, 112.25°WChadron Formation — 43.20°N, 107.10°WChadron Formation — 43.64°N, 102.72°WChadron Formation — 42.79°N, 104.49°WChadron Formation — 42.79°N, 103.50°W

Loading coastlines…

34 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

The 40 most often recorded, of 340.

What else lived thenRank the rock of a period

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