St. Peter Sandstone of Southeastern Minnesota: South St. Paul: Blackriveran, Minnesota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Tergomya
- Cyrtonellida
- Cyrtolitidae
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Cyrtonellopsis vetulum
(Sardeson 1896)
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10 specimens | |||||||||
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Cephalopoda
- Endocerida
- Endoceratidae
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Cameroceras sp.
Conrad 1842
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Cephalopoda
- Orthocerida
- Orthoceratidae
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Orthoceras minnesotense
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1 specimen | |||||||||
| "Orthoceras" minnesotense | ||||||||||
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Gastropoda
- Euomphalina
- Platyceratidae
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Horiostomella aiens
(Sardeson 1896)
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23 specimens | |||||||||
| recombined as Cyclonema aiens | ||||||||||
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Gastropoda
- Euomphalina
- Holopeidae
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Holopea paludiniformis
Hall 1847
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| [entered as Holopea paludinaeformis] | ||||||||||
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Holopea obliqua
Hall 1847
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Gastropoda
- Euomphalina
- Helicotomidae
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Ophileta fausta
Sardeson 1896
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| recombined as Ophiletina fausta | ||||||||||
| "Ophileta" fausta | ||||||||||
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Bivalvia
- Solemyida
- Ctenodontidae
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Ctenodonta novicea
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Bivalvia
- Modiomorphida
- Modiomorphidae
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Orthodesma litoralis
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Modiolopsis gregalis
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Bivalvia
- Cyrtodontida
- Cyrtodontidae
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Cyrtodonta descriptus
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Cyrtodonta dignus
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| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Minnesota | County: | Dakota |
| Coordinates: | 44.9° North, 93.0° West (view map) | ||||
| Paleocoordinates: | 18.0° South, 62.7° West | ||||
| Basis of coordinate: | based on political unit | ||||
| Geographic resolution: | local area |
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 |
| Lithology description: "[W]ell-sorted, well-rounded, fine to medium quartz sand and rare thin beds of shale and coarse sand (Duke, 1921; Thiel, 1935)." From J.M. Mazullo and R. Ehrlich, 1987. "The St. Peter Sandstone of Southeastern Minnesota: mode of deposition." Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Saint Paul, Minnesota Geological Survey Report of Investigations 35, p. 44-50. R. E. Sloan, ed. | |
| Environment: | coastal indet. |
| Geology comments: Siliciclastic indet., probably shallow coastal: very shallow water, perhaps 15 feet deep. Environmental call by T. Hanson. | |
Taphonomy
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
Metadata
| Database number: | 23085 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | T. Hanson | Research group: | marine invertebrate |
| Created: | 2002-07-09 08:28:16 | Last modified: | 2002-07-09 11:38:42 |
| Access level: | the public | Released: | 2002-07-09 08:28:16 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 6637. | R. E. Sloan. 1987. The St. Peter Sandstone of Southeastern Minnesota: Fauna. Middle and Late Ordovician Lithostratigraphy and Biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35:50-51 [S. Holland/T. Hanson/P. Wagner] |