Shedhorn Formation
Geology
Members: unnamed (9), Lower (3), Upper (2)
Lithologies: "siliciclastic" (1), sandstone (13), "limestone" (1)
Paleoenvironments: marine indet. (7), coastal indet. (7)
Collections
Time interval | Ma | Country or state | Original ID and collection number |
---|---|---|---|
Wordian | USA (Wyoming) | (11225 11226 61949 105280) | |
Wordian | USA (Montana) | (11276 11277) | |
Capitanian | USA (Wyoming) | (105272 105275) | |
Capitanian | USA (Montana) | (81427 83005 89395 105345 105346 105348) |