Where: Chubut, Argentina (43.1° S, 70.2° W: paleocoordinates 56.6° S, 80.4° W)

• coordinate estimated from map

• outcrop-level geographic resolution

When: Middle Member (Tepuel Formation), Bashkirian to Bashkirian (323.2 - 307.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: coastal; lithified siliciclastic sediments

Size class: macrofossils

Primary reference: C. R. Gonzalez and N. Sabattini. 1972. Hyolithes amosi nov. sp. (Calyptoptomatida, Mollusca) del Paleozoico superior del Grupo Tepuel, Provincia de Chubut, Argentina. Ameghiniana 9(2):183-189 [M. Clapham/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 81426: authorized by Matthew Clapham, entered by Matthew Clapham on 22.06.2008

Creative Commons license: CC BY (attribution)