CC X 14, Deadwood Form., Black Hills, South Dakota - Stitt and Straatmann 1997: Trempealeauan, South Dakota
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Trilobita
- Corynexochida
- Illaenuridae
|
||||||||||
|
Rasettia magna
Bell and Ellinwood 1962
|
5 specimens | |||||||||
| (2-2-0-1) | ||||||||||
|
Trilobita
- Asaphida
- Dikelocephalidae
|
||||||||||
|
Dikelocephalus minnesotensis
Owen 1852
|
2 specimens | |||||||||
| (1-1-0-0) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | United States | State/province: | South Dakota | County: | Lawrence |
| Coordinates: | 44.3° North, 103.9° West (view map) | ||||
| Paleocoordinates: | 11.7° South, 82.3° West | ||||
| Geographic resolution: | local area |
Time
| Period: | Cambrian | Epoch: | Furongian |
| 10 m.y. bin: | Cambrian 5 | ||
| *Period: | Late/Upper Cambrian | *Epoch: | Late/Upper Merioneth |
| *International age/stage: | Late/Upper Dolgellian | *Local age/stage: | Trempealeauan |
| Key time interval: | Trempealeauan | Zone: | Illaenurus |
| Age range of interval: | 489.20000 - 485.40000 m.y. ago | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Deadwood | ||||
| Local section: | Cheyenne Crossing | Local bed: | 14 feet | ||
| Local order: | bottom to top | ||||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Collection numbers represent exact footage above the base of the section. The X in the collection name indicates that the sample was not collected in situ but had not moved very far, and the footage is approximate. Stitt and Straatmann describes these samples as being float. | |||||
Lithology and environment
| Primary lithology: | lithified "limestone" |
| Lithology description: limestone | |
| Environment: | transition zone/lower shoreface |
| Geology comments: The Black Hills is a domal basement uplift formed during the Laramide Orogeny. | |
Taphonomy
Collection methods and comments
| Collection excludes: | some macrofossils |
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Collected by Christina Lochman-Balk and her students. Only trilobites are included in the collection. | |
| Taxonomic list comments:Abundances are lsited as cranidia-pygidia-librigenae-hypostomes (C-P-L-H), for polymeroid trilobites, cephala-pygidia (C-P) for agnostid trilobites, and number of valves for brachiopods. | |
Metadata
| Database number: | 9753 | ||
| Authorizer: | M. Patzkowsky | Enterer: | P. Borkow | Research group: | marine invertebrate |
| Created: | 2001-01-18 09:54:11 | Last modified: | 2001-08-30 17:52:51 |
| Access level: | the public | Released: | 2001-01-18 12:01:00 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 842. | J. H. Stitt and W. M. Straatmann. 1997. Trilobites from the upper part of the Deadwood Formation (Upper Franconian and Trempealeauan stages, Upper Cambrain), Black Hills, South Dakota. Journal of Paleontology 71(1):86-102 [M. Patzkowsky/P. Borkow/P. Wagner] |