Glenwood Formation Cephalopods, Minnesota: Blackriveran, Minnesota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cephalopoda
- Actinocerida
- Ormoceratidae
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Deiroceras scofieldi
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Cephalopoda
- Actinocerida
- Actinoceratidae
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Actinoceras beloitense
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Actinoceras janesvillensis
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| [entered as Actinoceras janesvillense] | ||||||||||
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Actinoceras gravicentrum
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Cephalopoda
- Actinocerida
- Gonioceratidae
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Gonioceras occidentale
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Cephalopoda
- Orthocerida
- Tripteroceratidae
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Tripteroceras planoconvexum
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Tripteroceras scofieldi
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Allumettoceras planodorsatum
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Michelinoceras sp.
Foerste 1932
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Cephalopoda
- Orthocerida
- Dawsonoceratidae
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Metaspyroceras minneapolis
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? Metaspyroceras nicolleti
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Cephalopoda
- Dissidocerida
- Geisonoceratidae
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Geisonoceras scofieldi
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Cephalopoda
- Barrandeocerida
- Barrandeoceratidae
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? Antiplectoceras sp.
Foerste and Savage 1927
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Centrocyrtoceras annulatum
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Centrocyrtoceras duplicostatum
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Cephalopoda
- Barrandeocerida
- Plectoceratidae
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Plectoceras robertsoni
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Plectoceras occidentale
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Cephalopoda
- Pseudorthocerida
- Spyroceratidae
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Spyroceras lesueuri
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| "Spyroceras" lesueuri; valid species but no revision of generic name | ||||||||||
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Spyroceras cylindratum
Foerste 1932
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| "Spyroceras" cylindratum; valid species but no revision of generic name | ||||||||||
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Cephalopoda
- Clinoceratidae
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Whitfieldoceras mumiaforme
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Whitfieldoceras clarkei
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Cephalopoda
- Cyrtocerinida
- Cyrtocerinidae
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Cyrtocerina sp.
Billings 1865
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Cyrtocerina crenulata
Flower 1952
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Cephalopoda
- Apsidoceratidae
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Chidleyenoceras sp.
Shimizu and Obata 1935
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Cephalopoda
- Oncocerida
- Valcouroceratidae
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? Fayettoceras beloitense
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Staufferoceras featherstonhaughi
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Cephalopoda
- Oncocerida
- Oncoceratidae
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Beloitoceras janesvillense
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Beloitoceras pandion
(Hall 1861)
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Zittelloceras percurvatum
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? Zittelloceras brevicurvatum
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? Zittelloceras tenuistriatum
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Kentlandoceras husseyi
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Loganoceras sp.
Foerste 1932
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Cephalopoda
- Oncocerida
- Diestoceratidae
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Diestoceras alceum
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Cephalopoda
- Discosorida
- Cyrtogomphoceratidae
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Ulrichoceras beloitense
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Cephalopoda
- Discosorida
- Westonoceratidae
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Reedsoceras macrostomum
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Cephalopoda
- Endocerida
- Endoceratidae
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Cameroceras cf. alternatum
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Cameroceras sp.
Conrad 1842
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Endoceras sp.
Hall 1847
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Endoceras proteiforme
Hall 1847
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Endoceras cf. annulatum
Hall 1847
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| recombined as Cyclendoceras annulatum | ||||||||||
| 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 - Late/Upper 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: | Glenwood |
| Stratigraphic resolution: | formation |
Lithology and environment
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: | 23690 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | S. Holland | Research group: | marine invertebrate |
| Created: | 2002-07-18 19:20:09 | Last modified: | 2004-10-22 11:29:47 |
| Access level: | the public | Released: | 2002-07-18 19:20:09 |
| 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] |