Bill's Creek, ~25 miles northeast of Escanaba: Maysvillian - Richmondian, Michigan
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Trilobita
- Phacopida
- Calymenidae
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Flexicalymene quadricapita
Stumm and Kauffman 1958
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see common names |
Geography
Country: | United States | State/province: | Michigan | County: | Delta |
Coordinates: | 45.8° North, 87.0° West (view map) | ||||
Paleocoordinates: | 19.5° South, 55.8° West | ||||
Basis of coordinate: | based on political unit | ||||
Geographic resolution: | outcrop |
Time
Period: | Ordovician | Epoch: | Late/Upper Ordovician |
Key time interval: | Maysvillian - Richmondian | Graptolite zone: | Amplexograptus manitoulinensis |
Age range of interval: | 452.00000 - 443.70000 m.y. ago |
Stratigraphy
Formation: | Bills Creek | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: Initially given as early Richmondian. Amplexograptus manitoulinensis & Amorphognathus superbus zones according to Wicander & Playford 2008. |
Lithology and environment
Primary lithology: | "shale" |
Environment: | carbonate indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection excludes: | some macrofossils |
Reason for describing collection: | taxonomic analysis |
Museum repositories: | UMMP |
Metadata
Database number: | 75964 | ||
Authorizer: | P. Wagner | Enterer: | P. Wagner |
Modifier: | P. Wagner | Research group: | marine invertebrate |
Created: | 2007-11-07 05:43:53 | Last modified: | 2018-03-25 13:22:32 |
Access level: | the public | Released: | 2007-11-07 05:43:53 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
25696. | E.C. Stumm and E.G. Kauffman. 1958. Calymenid trilobites from the Ordovician rocks of Michigan. Journal of Paleontology 32(5):943-960 [P. Wagner/P. Wagner] |