Where: Amazonas, Peru (6.8° S, 77.9° W: paleocoordinates 17.6° S, 48.0° W)
• coordinate based on nearby landmark
• outcrop-level geographic resolution
When: Copacabana Group, Artinskian (290.1 - 279.3 Ma)
• Top of Copacabana Group, 59 feet thick.
• 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 41341: authorized by David Bottjer, entered by Matthew Clapham on 13.07.2004
Creative Commons license: CC BY (attribution)
Taxonomic list
Crinoidea | |
| |
Rhynchonellata | |
Wellerella minuta n. sp.
Wellerella minuta n. sp. Chronic 1949 | |
Composita minuscula n. sp.
Composita minuscula n. sp. Chronic 1949 |