Iron Ridge, Richmond Group: Richmondian, Wisconsin
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Stenolaemata
- Cyclostomata
- Corynotrypidae
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Corynotrypa abrupta
Bassler 1911
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see common names |
Geography
Country: | United States | State/province: | Wisconsin |
Coordinates: | 43.4° North, 88.5° West (view map) | ||
Paleocoordinates: | 20.6° South, 57.9° West | ||
Basis of coordinate: | estimated from map |
Time
Period: | Ordovician | Epoch: | Late/Upper Ordovician |
10 m.y. bin: | Ordovician 5 | ||
Key time interval: | Richmondian | ||
Age range of interval: | 449.50000 - 443.70000 m.y. ago |
Stratigraphy
Geological group: | Richmond | ||||
Stratigraphy comments: "highest beds of Maquoketa Shale of the Richmond Group", in Bassler (1911) |
Lithology and environment
Primary lithology: | not reported |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils,mesofossils |
Collection methods and comments
Collection excludes: | some genera |
Reason for describing collection: | taxonomic analysis |
Metadata
Database number: | 167556 | ||
Authorizer: | B. Kröger | Enterer: | B. Kröger |
Created: | 2015-03-24 04:42:07 | Last modified: | 2015-03-24 04:42:07 |
Access level: | the public | Released: | 2015-03-24 04:42:07 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
54585. | R. S. Bassler. 1911. The early Paleozoic Bryozoa of the Baltic Provinces. Bulletin of the United States National Museum 77:1-375 [B. Kröger/B. Kröger] |