AMNH301, Bed 32b, Rasuvilca Hills section 9, Pajege Canyon (Permian to of Peru)

Where: Ayacucho, Peru (12.8° S, 74.2° W: paleocoordinates 26.7° S, 50.6° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

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

• Bed 32 in total is 125 feet thick.

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, shelly/skeletal, gray, blue limestone

• Limestone, blue-gray, flaggy.

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 41366: authorized by David Bottjer, entered by Matthew Clapham on 13.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Cyrtoneritimorpha - Orthonychiidae
Orthonychia pajerensis Chronic 1949 snail
 Murchisoniina - Gosseletinidae
Peruvispira delicata n. gen. n. sp.
Peruvispira delicata n. gen. n. sp. Chronic 1949 snail
Stenolaemata
 Fenestrida - Septoporidae
"Silvaseptopora incaica n. gen." = Septopora incaica
"Silvaseptopora incaica n. gen." = Septopora incaica Chronic 1949
Rhynchonellata
 Athyridida - Neoretziidae
Hustedia meridionalis Chronic 1949
 Athyridida - Athyrididae
Composita subtilita Hall 1852
n. ssp. peruviana
 Spiriferinida - Reticulariinidae
 Rhynchonellida - Rhynchoporidae