Angosto de la Quesera bed 1 (Cambrian of Argentina)

Where: Argentina (24.1° S, 66.0° W: paleocoordinates 45.7° S, 127.5° W)

• coordinate stated in text

• small collection-level geographic resolution

When: Lampazar Formation, Furongian (497.0 - 485.4 Ma)

• Parabolina frequens argentina Zone (uppermost Cambrian): so, Cambrian stage 10

• formation-level stratigraphic resolution

Environment/lithology: limestone

• Reddish-yellowish, fine-grained sandstone beds contain gastropods in association with numerous specimens of Hyolitha and Palaeophycus isp., as well as with well-preserved cranidia of the olenid trilobites Parabolina (Neoparabolina) frequens (BARRANDE) and Angelina hyeronimi (KAYSER).

Size class: macrofossils

Preservation: cast, original aragonite

Primary reference: M. K. Pinilla, N. M. Sabattini, M. F. Tortello and G. F. Aceñolaza. 2008. A new species of Strepsodiscus Knight (Gastropoda, Bellerophontoidea) from the Upper Cambrian of Argentina. Neues Jahrbuch für Geologie und Paläontologies Abhandlungen 248(2):217-223 [P. Wagner/P. Wagner]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 85006: authorized by Pete Wagner, entered by Pete Wagner on 20.11.2008

Creative Commons license: CC BY (attribution)

Taxonomic list

 Bellerophontida - Tropidodiscidae
Strepsodiscus austrinus n. sp. Pinilla et al. 2008 snail
 Olenida - Olenidae
Angelina hyeronimi Kayser 1876 trilobite
Parabolina (Neoparabolina) frequens Barrande 1868 trilobite
 Ichnofossils -
Palaeophycus sp. Hall 1847