AMNH298, Bed 39, Pasaje-Picchu Section 8 (Permian to of Peru)

Where: Apurimac, Peru (13.6° S, 73.1° W: paleocoordinates 27.7° S, 50.5° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Copacabana Group, Asselian to Asselian (298.9 - 290.1 Ma)

• 150 feet thick, base of Copacabana Group.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, nodular, shelly/skeletal limestone

• Limestone, nodular, thin-bedded, sparsely fossiliferous

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 41355: authorized by David Bottjer, entered by Matthew Clapham on 13.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Conocardium sp. Bronn 1835
 Carditida - Astartidae
Astartella sp. Hall 1858 clam
 Fenestrida - Fenestellidae
"Fenestrellina picchuensis" = Alternifenestella picchuensis
"Fenestrellina picchuensis" = Alternifenestella picchuensis Chronic 1949
 Fenestrida - Acanthocladiidae
Acanthocladia biserialis n. sp. Chronic 1949
 Productida - Productellidae
"Dictyoclostus boliviensis" = Alpavlia boliviensis
"Dictyoclostus boliviensis" = Alpavlia boliviensis d'Orbigny 1842
 Productida - Productidae
 Orthotetida - Derbyiidae
Derbyia buchi d'Orbigny 1842
 Athyridida - Neoretziidae
Hustedia meridionalis Chronic 1949
 Athyridida - Athyrididae
Composita subtilita Hall 1852
n. ssp. peruviana
 Spiriferinida - Reticulariinidae
Reticulariina atava Chronic 1949
 Spiriferinida - Punctospiriferidae
 Spiriferida - Ambocoeliidae