Where: Apurimac, Peru (13.6° S, 72.9° W: paleocoordinates 27.9° S, 49.9° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Copacabana Group, Asselian to Asselian (298.9 - 290.1 Ma)
• Bed 10 is 190 feet in total, fossils at 90 ft (10a?) and 150 ft above base.
• group of beds-level stratigraphic resolution
Environment/lithology: marine; lithified, shelly/skeletal, gray limestone
Size class: macrofossils
Preservation: replaced with silica
Collection methods: bulk, chemical,
Primary reference: N. D. Newell, J. Chronic, and T.G. Roberts. 1953. Upper Paleozoic of Peru. Geological Society of America Memoir 58:1-276 [D. Bottjer/M. Clapham/P. Wagner]more details
Purpose of describing collection: taxonomic analysis
PaleoDB collection 41349: authorized by David Bottjer, entered by Matthew Clapham on 13.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Crinoidea | |
| |
Echinoidea | |
"Echinocrinus sp." = Archaeocidaris
| |
Rhynchonellata | |
| |
Strophomenata | |
"Dictyoclostus boliviensis" = Alpavlia boliviensis
"Dictyoclostus boliviensis" = Alpavlia boliviensis d'Orbigny 1842 | |
Gastropoda | |
Omphalotrochus obtusispira Shumard 1859 snail |