Also known as DC x78
Where: Rapid City County, South Dakota (44.1° N, 103.2° W: paleocoordinates 12.2° S, 82.5° W)
• small collection-level geographic resolution
When: Aphelaspis zone, lower Member (Deadwood Formation), Steptoean (497.0 - 493.5 Ma)
Environment/lithology: transition zone or lower shoreface; limestone
Preservation: cast
Collection methods: bulk,
Primary reference: J. H. Stitt and P. J. Perfetta. 2000. Trilobites, Biostratigraphy, and Lithostratigraphy of the Crepicephalus and Aphelaspis zones, Lower Deadwood formation (Marjuman and Steptoean Stages, Upper Cambrian), Black Hills, South Dakota. Journal of Paleontology 74(2):199-223 [M. Patzkowsky/K. Straub/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 7378: authorized by Mark Patzkowsky, entered by Kyle Straub on 23.05.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Aphelaspis haguei trilobite | |
Glaphyraspis parva Walcott 1899 trilobite | |
Cheilocephalus brevilobus Walcott 1916 trilobite |