AMNH301, Bed 30, 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)

• 103 feet thick.

• group of beds-level stratigraphic resolution

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

• Limestone, massive, gray, even-bedded

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 41364: authorized by David Bottjer, entered by Matthew Clapham on 13.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

 Productida - Echinoconchidae
Juresania hispida Chronic 1949
 Productida - Productidae
 Productida - Linoproductidae
Linoproductus cora d'Orbigny 1842
 Productida - Rugosochonetidae
Lissochonetes assula n. sp. Chronic 1949
 Productida - Chonetidae
"Chonetes" sp. Fischer de Waldheim 1830
 Athyridida - Neoretziidae
Hustedia meridionalis Chronic 1949
 Athyridida - Athyrididae
Composita subtilita Hall 1852
n. ssp. peruviana
 Terebratulida - Dielasmatidae
Dielasma scitulum n. sp. Chronic 1949
 Fenestrida - Fenestellidae
"Fenestrellina pajerensis n. sp." = Alternifenestella pajerensis, "Cervella aspera n. sp." = Alternifenestella (Cervella) aspera
"Fenestrellina pajerensis n. sp." = Alternifenestella pajerensis Chronic 1949
"Cervella aspera n. sp." = Alternifenestella (Cervella) aspera Chronic 1949
 Fenestrida - Septoporidae
"Silvaseptopora incaica n. gen. n. sp." = Septopora incaica
"Silvaseptopora incaica n. gen. n. sp." = Septopora incaica Chronic 1949
 Fenestrida - Polyporidae
Polypora andina Chronic 1949
Polypora spissa Chronic 1949
 Cystoporida - Hexagonellidae