AMNH303, Section 11, Pomachaca (Carboniferous to of Peru)

Where: Junin, Peru (11.4° S, 75.7° W: paleocoordinates 30.2° S, 56.7° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Tarma Group, Bashkirian to Bashkirian (323.2 - 307.0 Ma)

• Atokan = late Bashkirian or early Moscovian. Fossils from undivided section.

Environment/lithology: marine; lithified lithology not reported

Size class: macrofossils

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 41387: authorized by David Bottjer, entered by Matthew Clapham on 13.07.2004

Creative Commons license: CC BY (attribution)

Taxonomic list

Rostroconchia
 Conocardiida - Bransoniidae
"Conocardium pomachacanum" = Apotocardium pomachacanum
"Conocardium pomachacanum" = Apotocardium pomachacanum Chronic 1949
Gastropoda
 Euomphalina - Omphalotrochidae
Cinclidonema aff. texanum Knight 1945 snail
 Bellerophontida - Euphemitidae
Euphemites sp. Warthin 1930 snail
 Murchisoniina - Gosseletinidae
Trepospira depressa Cox 1857 snail
Strophomenata
 Productida - Productellidae
 Productida - Productidae
"Buxtonia peruviana" = Kochiproductus peruvianus
"Buxtonia peruviana" = Kochiproductus peruvianus d'Orbigny 1842
 Orthotetida - Schuchertellidae
 Orthotetida - Orthotetidae
"Derbyia cf. tapajotensis" = Tapajotia tapajotensis
"Derbyia cf. tapajotensis" = Tapajotia tapajotensis Derby 1874
Rhynchonellata
 Athyridida - Athyrididae
Composita sp. Brown 1849
 Spiriferinida - Punctospiriferidae
Punctospirifer sp. North 1920
 Spiriferida - Trigonotretidae
 Spiriferida - Spiriferidae
 Rhynchonellida - Rhynchoporidae
Rhynchopora magnicosta Mather 1915
n. ssp. amotapensis
 Orthida - Rhipidomellidae