Trempealeau Fm., St. Lawrence and Mendota Mbrs.: Trempealeauan, Wisconsin
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Rhynchonellata
- Orthida
|
||||||||||
|
Orthida indet.
Schuchert and Cooper 1932
|
||||||||||
|
Tergomya
- Kiringellida
|
||||||||||
|
Hypseloconus sp.
Berkey 1898
|
||||||||||
|
Tergomya
- Archinacellida
- Archinacellidae
|
||||||||||
|
Archinacella sp.
Ulrich and Scofield 1897
|
||||||||||
|
Paragastropoda
- Mimospirida
- Onychochilidae
|
||||||||||
|
Scaevogyra sp.
Whitfield 1878
|
||||||||||
| originally entered as "Scaeuogyra sp." | ||||||||||
|
Helcionelloida
- Helcionellida
- Coreospiridae
|
||||||||||
|
Owenella sp.
Ulrich and Scofield 1897
|
||||||||||
|
Polyplacophora
- Mattheviidae
|
||||||||||
|
Matthevia sp.
Walcott 1885
|
||||||||||
|
Trilobita
- Ptychopariida
- Plethopeltidae
|
||||||||||
|
Plethometopus sp.
Ulrich 1931
|
||||||||||
| originally entered as "Plethometops sp." | ||||||||||
|
Trilobita
- Asaphida
- Dikelocephalidae
|
||||||||||
|
Saukia sp.
Walcott 1914
|
||||||||||
|
Dikelocephalus sp.
Owen 1852
|
||||||||||
|
Trilobita
- Corynexochida
- Illaenuridae
|
||||||||||
|
Platycolpus sp.
Raymond 1913
|
||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | Wisconsin |
| Coordinates: | 44.5° North, 89.6° West (view map) | ||
| Paleocoordinates: | 21.5° South, 79.3° West | ||
| Basis of coordinate: | based on political unit |
Time
| Period: | Cambrian | Epoch: | Furongian |
| 10 m.y. bin: | Cambrian 5 | *Epoch: | Upper | *Local age/stage: | Trempealeau |
| Key time interval: | Trempealeauan | ||
| Age range of interval: | 489.2 - 485.4 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Trempealeau | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: "St. Lawrence and Mendota Members, Trempealeauan" | |||||
Lithology and environment
| Primary lithology: | glauconitic sandstone | ||
| Environment: | shallow subtidal indet. | Tectonic setting: | cratonic basin |
| Geology comments: "15 ft. dolo and ss, thick-bedded, glauconitic, some stromatolites, nearshore (BA1), cratonic" | |||
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Reason for describing collection: | biostratigraphic analysis |
| Taxonomic list comments:"Twenhofel et al. 1935" | |
Metadata
| Database number: | 255 | ||
| Authorizer: | J. Sepkoski | Enterer: | M. Sommers |
| Modifier: | M. Uhen | Research group: | marine invertebrate |
| Created: | 1998-11-20 10:07:18 | Last modified: | 2017-01-26 19:45:37 |
| Access level: | the public | Released: | 1998-11-20 10:07:18 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 32152. | W. H. Twenhofel, G. O. Raasch, and F. T. Thwaites. 1935. Cambrian strata of Wisconsin. Geological Society of America Bulletin 46(11):1687-1744 [P. Wagner/P. Wagner] |