AMNH298, Bed 41, 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)

• 50 feet thick.

• group of beds-level stratigraphic resolution

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

• Limestone, massive, gray, weathers rough.

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 41357: authorized by David Bottjer, entered by Matthew Clapham on 13.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Pectinida - Heteropectinidae
"Aviculopecten crassispinosus" = Cassianoides crassispinosus
"Aviculopecten crassispinosus" = Cassianoides crassispinosus Chronic 1949 scallop
 Nuculida - Nuculidae
"Palaeonucula cf. levatiformis" = Nuculavus levatiformis
"Palaeonucula cf. levatiformis" = Nuculavus levatiformis Walcott 1884 nut clam
Gastropoda
 Murchisoniina - Gosseletinidae
Peruvispira delicata n. gen. Chronic 1949 snail
Stenolaemata
 Fenestrida - Fenestellidae
"Fenestrellina huascatayana n. sp." = Fabifenestella huascatayana, "Cervella cervoidea n. gen." = Alternifenestella cervoidea, "Fenestrellina picchuensis n. sp." = Alternifenestella picchuensis
"Fenestrellina huascatayana n. sp." = Fabifenestella huascatayana Chronic 1949
"Cervella cervoidea n. gen." = Alternifenestella cervoidea Chronic 1949
"Fenestrellina picchuensis n. sp." = Alternifenestella picchuensis Chronic 1949
 Fenestrida - Septoporidae
"Silvaseptopora incaica n. gen." = Septopora incaica
"Silvaseptopora incaica n. gen." = Septopora incaica Chronic 1949
 Fenestrida - Polyporidae
Polypora andina Chronic 1949
Polypora spissa n. sp. Chronic 1949
Crinoidea
  -
Crinoidea indet. Miller 1821 Sea lily
Stems and rare plates
Strophomenata
 Productida - Echinoconchidae
Juresania hispida n. sp. Chronic 1949
Waagenoconcha humboldti d'Orbigny 1842
 Orthotetida - Derbyiidae
Derbyia buchi d'Orbigny 1842
Rhynchonellata
 Athyridida - Neoretziidae
Hustedia meridionalis Chronic 1949
 Athyridida - Athyrididae
Composita subtilita Hall 1852
n. ssp. peruviana
 Terebratulida - Dielasmatidae
Dielasma scitulum Chronic 1949
 Spiriferinida - Reticulariinidae
Reticulariina atava n. sp. Chronic 1949
 Spiriferinida - Punctospiriferidae
Punctospirifer patulus n. sp. Chronic 1949
 Spiriferida - Trigonotretidae
"Neospirifer condor" = Gypospirifer condor
"Neospirifer condor" = Gypospirifer condor d'Orbigny 1842
 Spiriferida - Ambocoeliidae
 Rhynchonellida - Wellerellidae
Wellerella osagensis Shumard and Swallow 1858
n. ssp. peruviana