AT-B, Atacocha (Triassic of Peru)

Where: Peru (10.6° S, 76.2° W: paleocoordinates 21.4° S, 43.4° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Chambara Formation (Pucara Group), Alaunian (215.6 - 212.0 Ma)

• Upper Columbianus zone

• bed-level stratigraphic resolution

Environment/lithology: open shallow subtidal; lithified limestone

Size class: macrofossils

Preservation: recrystallized, replaced with silica

Collected by B. Senowbari-Daryan, G. Stanley, Delgado in 1985; reposited in the UMMP

Collection methods: chemical

Primary reference: K. Bandel. 1994. Comparison of Upper Triassic and Lower Jurassic gastropods from the Peruvian Andes (Pucara Group) and the Alps (Cassian Formation). Palaeontographica Abteilung A 233:127-160 [W. Kiessling/B. Brenneis/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 144486: authorized by Matthew Clapham, entered by Matthew Clapham on 08.05.2013, edited by Benjamin Brenneis

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
 Euomphalina - Macluritidae
"Coelocentrus sp." = Maclurites
"Coelocentrus sp." = Maclurites Le Sueur 1818 snail
 Sorbeoconcha - Procerithiidae
Rhynchocerithium peruvianum Bandel 1994 snail
 Sorbeoconcha - Ladinulidae
Ladinula peruviana n. sp. Bandel 1994 snail