St. Peter Sandstone, MN - Patzkowsky: Whiterockian - Mohawkian, 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 sp.
Yochelson 1958
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10 individuals | |||||||||
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Cephalopoda
- Orthocerida
- Kionoceratidae
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Kionoceras sp.
Hyatt 1884
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1 individual | |||||||||
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Cephalopoda
- Orthocerida
- Orthoceratidae
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"Orthoceras" sp.
Breynius 1832
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1 individual | |||||||||
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Cephalopoda
- Endocerida
- Endoceratidae
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Cameroceras sp.
Conrad 1842
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2 individuals | |||||||||
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Gastropoda
- Euomphalina
- Ophiletidae
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"Ophileta" sp.
Vanuxem 1842
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5 individuals | |||||||||
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Gastropoda
- Euomphalina
- Holopeidae
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Holopea 2 spp.
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2 individuals | |||||||||
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Gastropoda
- Sinuopeidae
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Horiostomella sp.
Perner 1903
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23 individuals | |||||||||
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Gastropoda
- Murchisoniina
- Lophospiridae
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Lophospira sp.
Whitfield 1886
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1 individual | |||||||||
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Gastropoda
- Murchisoniina
- Hormotomidae
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Hormotoma sp.
(Salter 1859)
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17 individuals | |||||||||
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Bivalvia
- Solemyida
- Ctenodontidae
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Ctenodonta sp.
Salter 1852
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27 individuals | |||||||||
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Bivalvia
- Modiomorphida
- Modiomorphidae
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Goniophora sp.
Phillips 1848
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2 individuals | |||||||||
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Modiolopsis 3 spp.
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251 individuals | |||||||||
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Orthodesma sp.
Hall and Whitfield 1875
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30 individuals | |||||||||
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Bivalvia
- Cyrtodontida
- Cyrtodontidae
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Cyrtodonta 2 spp.
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48 individuals | |||||||||
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Vanuxemia sp.
Billings 1858
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8 individuals | |||||||||
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Lingulata
- Lingulida
- Lingulidae
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"Lingula" sp.
Bruguiére 1797
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not avail. individuals | |||||||||
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Craniata
- Craniida
- Craniidae
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? Crania sp.
Retzius 1781
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2 individuals | |||||||||
| or Petrocrania | ||||||||||
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Rhynchonellata
- Orthida
- Plectorthidae
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Doleroides sp.
Cooper 1930
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N/A individuals | |||||||||
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Stenolaemata
- Cryptostomata
- Ptilodictyidae
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? Ptilodictya sp.
Lonsdale 1839
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1 individual | |||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Minnesota |
| Coordinates: | 45.0° North, 93.3° West (view map) | ||
| Paleocoordinates: | 18.0° South, 64.9° West | ||
| Basis of coordinate: | based on nearby landmark |
Time
| Period: | Ordovician | ||
| *Period: | Middle Ordovician | *Epoch: | Early/Lower Mohawkian - Late/Upper Whiterock |
| Key time interval: | Whiterockian - Mohawkian | ||
| Age range of interval: | 470.00000 - 451.10000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | St. Peter Sandstone | ||||
| Stratigraphy comments: EZ 2 |
Lithology and environment
| Primary lithology: | lithified sandstone |
| Lithology description: sandstone | |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body,cast |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
| Collection method comments: List is originally from Sandeson 1892, 1896 but was revised by Sloan. | |
Metadata
| Database number: | 10767 | ||
| Authorizer: | M. Patzkowsky | Enterer: | A. Krug |
| Modifier: | P. Wagner | Research group: | marine invertebrate |
| Created: | 2001-06-20 14:41:52 | Last modified: | 2024-03-31 19:21:01 |
| Access level: | the public | Released: | 2001-06-20 14:41:52 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 4017. | R. E. Sloan, W.F. Rice, E. Hedblom and J.M. Mazzullo. 1987. The Middle Ordovician Fossils of the Twin Cities, Minnesota. Minnesota Geological Survey, University of Minnesota, Guidebook Series no. 15 53-69 [M. Patzkowsky/A. Krug] |