Bighorn Formation Cephalopods, Wyoming (Ordovician of the United States)

Where: Wyoming (44.0° N, 109.0° W: paleocoordinates 9.2° S, 68.9° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Bighorn Formation, Late/Upper Ordovician (458.4 - 443.4 Ma)

• formation-level stratigraphic resolution

Environment/lithology: dolomite and sandstone

• Environmental call by T. Hanson.

Size class: macrofossils

Primary reference: A. K. Miller, W. Youngquist, and C. Collinson. 1954. Ordovician cephalopod fauna of Baffin Island. Geological Society of America Memoir 62:1-234 [S. Holland/T. Hanson/T. Hanson]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 24167: authorized by Steven Holland, entered by Tori Hanson on 01.08.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Cephalopoda
 Orthocerida - Kionoceratidae
Kionoceras sp. Hyatt 1884
 Orthocerida - Proteoceratidae
Ephippiorthoceras sp. Foerste 1924
 Orthocerida - Clinoceratidae
Whitfieldoceras sp. Foerste 1932
 Orthocerida - Tripteroceratidae
Allumettoceras sp. Foerste 1926
 Discosorida - Westonoceratidae
Winnipegoceras sp. Foerste 1928
Westonoceras sp. Foerste 1924
 Discosorida - Cyrtogomphoceratidae
Cyrtogomphoceras sp. Foerste 1924
 Barrandeocerida - Apsidoceratidae
Wilsonoceras sp. Foerste 1929
? Charactoceras sp. Foerste 1924
 Endocerida - Endoceratidae
Endoceras sp. Hall 1847
Cyclendoceras sp. Grabau and Shimer 1910
 Actinocerida - Gonioceratidae
Lambeoceras sp. Foerste 1917
 Actinocerida - Actinoceratidae
Actinoceras sp. Bronn 1837
Kochoceras sp. Troedsson 1926
Paractinoceras sp. Hyatt in Zittel 1900
 Pseudorthocerida - Spyroceratidae
Spyroceras sp. Hyatt 1884
 Oncocerida - Diestoceratidae
Diestoceras sp. Foerste 1924