Elgin Member, Maquoketa Formation, Granger, Minnesota rugose coral: Maysvillian - Richmondian, Minnesota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Anthozoa
- Stauriida
- Streptelasmatidae
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Grewingkia sp.
Dybowski 1873
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| see common names | |||||||
Geography
| Country: | United States | State/province: | Minnesota |
| Coordinates: | 43.5° North, 92.1° West (view map) | ||
| Paleocoordinates: | 17.7° South, 115.8° West (Wright 2013) | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Ordovician | Epoch: | Late Ordovician |
| Stage: | Katian | 10 m.y. bin: | Ordovician 5 |
| *Period: | Late/Upper Ordovician | *Local age/stage: | Maysvillian - Richmondian |
| Key time interval: | Maysvillian - Richmondian | ||
| Age range of interval: | 450.2 - 445.5 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Lithology and environment
| Primary lithology: | "shale" |
| Secondary lithology: | "limestone" |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: Shale interbedded with limestone; sometimes dolomitic. Lithology from F. M. Swain. 1987. Middle and Upper Ordovician Ostracoda of Minnesota and Iowa. Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 :99-101. Edited by R. E. Sloan. | |
| Environment: | carbonate indet. |
Taphonomy
| Size of fossils: | macrofossils |
| Feeding/predation traces: | drill holes |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | biostratigraphic analysis |
| Taxonomic list comments:From Elias et. al. (1988) | |
Metadata
| Database number: | 28017 | ||
| Authorizer: | S. Holland | Enterer: | T. Hanson |
| Modifier: | T. Hanson | Research group: | marine invertebrate |
| Created: | 2003-01-20 19:20:27 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2003-01-20 19:20:27 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 7673. | R. J. Elias and D. Lee. 1993. Microborings and growth in Late Ordovician halysitids and other corals. Journal of Paleontology 67(6):922-934 [S. Holland/T. Hanson/T. Hanson] |