Also known as G 160
Where: Galena County, South Dakota (44.3° N, 103.6° W: paleocoordinates 11.9° S, 82.2° W)
• small collection-level geographic resolution
When: Aphelaspis zone, lower Member (Deadwood Formation), Steptoean (497.0 - 493.5 Ma)
Environment/lithology: foreshore; limestone and sandstone
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 8022: authorized by Mark Patzkowsky, entered by Kyle Straub on 13.06.2000
Creative Commons license: CC BY (attribution)
Taxonomic list
Trilobita | |
Cheilocephalus brevilobus Walcott 1916 trilobite | |
Blountia bristolensis Resser 1938 trilobite | |
Glaphyraspis parva Walcott 1899 trilobite | |
Aphelaspis haguei trilobite |