St. Peter Sandstone Cephalopods, Minnesota (Ordovician of the United States)

Where: Minnesota (45.0° N, 93.0° W: paleocoordinates 17.9° S, 62.6° W)

• coordinate estimated from map

• basin-level geographic resolution

When: St. Peter Sandstone Formation, Blackriveran (457.3 - 449.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; sandstone

• Siliciclastic indet. Environmental call by T. Hanson.

Size class: macrofossils

Primary reference: J. A. Catalani. 1987. Biostratigraphy of the Middle and Late Ordovician cephalopods of the Upper Mississippi Valley area. In R. E. Sloan (ed.), Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 187-189 [S. Holland/T. Hanson/S. Bruning]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 23689: authorized by Steven Holland, entered by Tori Hanson on 18.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

• Faunal list compiled from:

•1. Whitfield's (1882) report in volume 4 of Chamberlin's Geology of Wisconsin

•2. Clarke's (1897) report in volume III part 2 of Winchell's Final Reports of the Minnesota Geological and Natural History Survey

•3. Bassler's Index

•4. Individual articles (Foerste, Flower, etc.)

•5. Treatise, Part K

•6. Author's personal field data

Show authors, comments, and common names
Cephalopoda
 Oncocerida - Oncoceratidae
Zittelloceras percurvatum, ? Zittelloceras brevicurvatum, Zittelloceras tenuistriatum
 Oncocerida - Diestoceratidae
Diestoceras alceum
 Discosorida - Westonoceratidae
Reedsoceras macrostomum
 Barrandeocerida - Barrandeoceratidae
? Antiplectoceras sp.
? Antiplectoceras sp. Foerste and Savage 1927
 Actinocerida - Ormoceratidae
Deiroceras scofieldi
 Actinocerida - Gonioceratidae
Gonioceras occidentale
 Actinocerida - Actinoceratidae
Actinoceras beloitense, Actinoceras gravicentrum
 Orthocerida - Kionoceratidae
Kionoceras sp.
Kionoceras sp. Hyatt 1884
 Endocerida - Endoceratidae
Endoceras proteiforme, Cameroceras sp.
Cameroceras sp. Conrad 1842