Greenhorn Formation

70 distinct taxa, from 184 fossil occurrences the Paleobiology Database records under this name, spanning 143–66 Mya.

South Dakota, New Mexico, Colorado, Montana · US

70 taxa · 184 fossils · 143–66 Mya

Filed under the Colorado Group. Members recorded: Orman Lake, Bridge Creek Limestone, Hartland, Jetmore Chalk, Bridge Creek, Jetmore, Lincoln, Pfeifer.

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

Greenhorn Formation — 43.27°N, 103.22°WGreenhorn Formation — 37.47°N, 104.11°WGreenhorn Formation — 39.05°N, 98.20°WGreenhorn Formation — 40.22°N, 105.27°WGreenhorn Formation — 42.52°N, 96.82°WGreenhorn Formation — 45.77°N, 96.64°WGreenhorn Formation — 42.62°N, 96.73°WGreenhorn Formation — 44.05°N, 104.60°WGreenhorn Formation — 32.53°N, 107.70°WGreenhorn Formation — 32.76°N, 108.67°WGreenhorn Formation — 45.02°N, 104.30°WGreenhorn Formation — 38.05°N, 101.90°WGreenhorn Formation — 38.07°N, 99.89°WGreenhorn Formation — 44.70°N, 103.68°WGreenhorn Formation — 44.74°N, 103.83°WGreenhorn Formation — 38.26°N, 104.73°WGreenhorn Formation — 37.19°N, 104.15°WGreenhorn Formation — 44.15°N, 104.73°WGreenhorn Formation — 32.48°N, 102.72°WGreenhorn Formation — 38.95°N, 98.52°WGreenhorn Formation — 38.92°N, 98.71°WGreenhorn Formation — 43.29°N, 103.80°WGreenhorn Formation — 44.76°N, 103.75°WGreenhorn Formation — 43.29°N, 103.42°WGreenhorn Formation — 33.89°N, 106.75°W

Loading coastlines…

25 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 70.

What else lived thenRank the rock of a period

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