PBDB Collection

Platteville Formation Cephalopods, Minnesota (Ordovician to 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: Platteville Formation, Blackriveran to Blackriveran (457.3 - 449.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: limestone

• Environmental call by T. Hanson.

• Limestone with shaly partings. Lithology from W. F. Rice and E. P. Hedblom. 1987. Brachiopods and trilobites of the Sardeson Beds in the Twin Cities. Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 :131-135. Edited by R. E. Sloan.

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 23691: 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

unclassified
-	Bodeiceras oxygonium, Onoceras abruptum, Onoceras tetreauvillense, Cyrtoizoceras minneapolis Bodeiceras oxygonium Onoceras abruptum Onoceras tetreauvillense Cyrtoizoceras minneapolis
Cephalopoda
Pseudorthocerida - Spyroceratidae	Spyroceras lesueuri, Spyroceras scofieldi, Spyroceras cylindratum Spyroceras lesueuri "Spyroceras" lesueri Spyroceras scofieldi "Spyroceras" scofieldi Spyroceras cylindratum Foerste 1932
Endocerida - Endoceratidae	Endoceras sp., Endoceras proteiforme, Cameroceras cf. alternatum, Cameroceras sp., "Endoceras cf. annulatum" = Cyclendoceras annulatum Endoceras sp. Hall 1847 Endoceras proteiforme Hall 1847 Cameroceras cf. alternatum Cameroceras sp. Conrad 1842 "Endoceras cf. annulatum" = Cyclendoceras annulatum Hall 1847
Multiceratoidea - Apsidoceratidae	Chidleyenoceras sp. Chidleyenoceras sp. Shimizu and Obata 1935
Discosorida - Cyrtogomphoceratidae	Ulrichoceras beloitense Ulrichoceras beloitense
Discosorida - Westonoceratidae	Reedsoceras macrostomum Reedsoceras macrostomum
Multiceratoidea - Clinoceratidae	Whitfieldoceras mumiaforme, Whitfieldoceras clarkei Whitfieldoceras mumiaforme Whitfieldoceras clarkei
Ascocerida - Hebetoceratidae	? Hebetoceras sp. ? Hebetoceras sp. Flower 1941
Ascocerida - Probillingsitidae	? Redpathoceras sp. ? Redpathoceras sp. Flower 1963
Cyrtocerinida - Cyrtocerinidae	Cyrtocerina crenulata Cyrtocerina crenulata Flower 1952
Oncocerida - Oncoceratidae	Zittelloceras beloitense, Zittelloceras clarkeanum, Zittelloceras scofieldi, Zittelloceras percurvatum, ? Zittelloceras brevicurvatum, ? Zittelloceras tenuistriatum, Richardsonoceras simplex, Richardsonoceras beloitense, Richardsonoceras romingeri, ? Richardsonoceras clarkei, ? Richardsonoceras scofieldi, Beloitoceras lycum, Beloitoceras janesvillense, Beloitoceras carveri, Beloitoceras norwoodi, Beloitoceras houghtoni, Beloitoceras cf. huronense, Beloitoceras plebeium, Beloitoceras pandion, Scofieldoceras shumardi, Kentlandoceras husseyi, Kentlandoceras cf. schrocki, Loganoceras sp. Zittelloceras beloitense Zittelloceras clarkeanum Zittelloceras scofieldi Zittelloceras percurvatum ? Zittelloceras brevicurvatum ? Zittelloceras tenuistriatum Richardsonoceras simplex Richardsonoceras beloitense Richardsonoceras romingeri ? Richardsonoceras clarkei ? Richardsonoceras scofieldi Beloitoceras lycum Beloitoceras janesvillense Beloitoceras carveri Beloitoceras norwoodi Beloitoceras houghtoni Beloitoceras cf. huronense Billings 1865 Beloitoceras plebeium Hall 1861 Beloitoceras pandion Hall 1861 Scofieldoceras shumardi Kentlandoceras husseyi Kentlandoceras cf. schrocki Loganoceras sp. Foerste 1932
Oncocerida - Diestoceratidae	Diestoceras alceum, Diestoceras sp. Diestoceras alceum Diestoceras sp. Foerste 1924
Oncocerida - Valcouroceratidae	Manitoulinoceras neleum, ? Fayettoceras beloitense, Valcouroceras sp. Manitoulinoceras neleum ? Fayettoceras beloitense Valcouroceras sp. Flower 1943
Barrandeocerida - Barrandeoceratidae	Centrocyrtoceras annulatum, Centrocyrtoceras duplicostatum, ? Antiplectoceras sp. Centrocyrtoceras annulatum Centrocyrtoceras duplicostatum ? Antiplectoceras sp. Foerste and Savage 1927
Barrandeocerida - Plectoceratidae	Plectoceras robertsoni, Plectoceras occidentale Plectoceras robertsoni Plectoceras occidentale
Orthocerida - Proteoceratidae	"Orthoceras junceum" = Isorthoceras junceum, Gorbyoceras sp. "Orthoceras junceum" = Isorthoceras junceum Hall 1877 "Orthoceras" junceum Gorbyoceras sp. Shimizu and Obata 1935
Orthocerida - Tripteroceratidae	Tripteroceras planoconvexum, Tripteroceras oweni, Tripteroceras scofieldi, Allumettoceras planodorsatum, Allumettoceras cf. carletonense Tripteroceras planoconvexum Tripteroceras oweni Tripteroceras scofieldi Allumettoceras planodorsatum Allumettoceras cf. carletonense Allumettoceras cf. planodorsatum carletonense
Orthocerida - Orthoceratidae	Michelinoceras sp., Michelinoceras multicameratum Michelinoceras sp. Foerste 1932 Michelinoceras multicameratum
Orthocerida - Dawsonoceratidae	Metaspyroceras minneapolis, ? Metaspyroceras nicolleti, ? Metaspyroceras wisconsinense Metaspyroceras minneapolis ? Metaspyroceras nicolleti ? Metaspyroceras wisconsinense
Dissidocerida - Geisonoceratidae	Geisonoceras scofieldi Geisonoceras scofieldi
Actinocerida - Ormoceratidae	Deiroceras scofieldi Deiroceras scofieldi
Actinocerida - Actinoceratidae	Actinoceras bigsbyi, Actinoceras beloitense, Actinoceras janesvillensis, Actinoceras gravicentrum Actinoceras bigsbyi Actinoceras beloitense Actinoceras janesvillensis [entered as Actinoceras janesvillense] Actinoceras gravicentrum
Actinocerida - Gonioceratidae	Gonioceras occidentale, Gonioceras homerense, Gonioceras anceps Gonioceras occidentale Gonioceras homerense Gonioceras occidentale homerense Gonioceras anceps Hall 1847