St. Peter Sandstone Cephalopods, Minnesota: Blackriveran, Minnesota

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Cephalopoda - Discosorida - Westonoceratidae
Reedsoceras macrostomum
Cephalopoda - Oncocerida - Oncoceratidae
Zittelloceras percurvatum
? Zittelloceras brevicurvatum
Zittelloceras tenuistriatum
Cephalopoda - Oncocerida - Diestoceratidae
Diestoceras alceum
Cephalopoda - Barrandeocerida - Barrandeoceratidae
? Antiplectoceras sp. Foerste and Savage 1927
Cephalopoda - Orthocerida - Kionoceratidae
Kionoceras sp. Hyatt 1884
Cephalopoda - Actinocerida - Actinoceratidae
Actinoceras beloitense
Actinoceras gravicentrum
Cephalopoda - Actinocerida - Gonioceratidae
Gonioceras occidentale
Cephalopoda - Actinocerida - Ormoceratidae
Deiroceras scofieldi
Cephalopoda - Endocerida - Endoceratidae
Endoceras proteiforme Hall 1847
Cameroceras sp. Conrad 1842
see common names

Geography
Country:United States State/province:Minnesota
Coordinates: 45.0° North, 93.0° West (view map)
Paleocoordinates:17.9° South, 62.6° West
Basis of coordinate:estimated from map
Geographic resolution:basin
Time
Period:Ordovician Epoch:Late/Upper Ordovician
10 m.y. bin:Ordovician 4-5
*Period:Middle Ordovician *Local age/stage:Blackriveran
Key time interval:Blackriveran
Age range of interval:457.00000 - 449.80000 m.y. ago
* legacy (obsolete) database fields
Stratigraphy
Formation:St. Peter Sandstone
Stratigraphic resolution:formation
Lithology and environment
Primary lithology: sandstone
Includes fossils?Y
Environment:marine indet.
Geology comments: Siliciclastic indet. Environmental call by T. Hanson.
Taphonomy
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Taxonomic list comments: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
Metadata
Database number:23689
Authorizer:S. Holland Enterer:T. Hanson
Modifier:T. Hanson Research group:marine invertebrate
Created:2002-07-18 19:08:51 Last modified:2002-07-19 10:54:21
Access level:the public Released:2002-07-18 19:08:51
Creative Commons license:CC BY
Reference information

Primary reference:
6752. 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]