ammonites
Arroyo Piedra Azul, Bed BM6, Sierra Pillahuinco (Permian of Argentina)

Where: Argentina (38.1° S, 61.7° W: paleocoordinates 52.8° S, 54.4° W)

• coordinate based on nearby landmark

• outcrop-level geographic resolution

When: Bonete Formation (Pillahuinco Group), Sakmarian (295.0 - 290.1 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: marine; lithified, gray shale

Size class: macrofossils

Preservation: mold/impression

Collection methods: Repository: Department of Geology, University of Buenos Aires (CPBA)

Primary reference: H. J. Harrington. 1955. The Permian Eurydesma fauna of eastern Argentina. Journal of Paleontology 29(1):112-128 [M. Clapham/M. Clapham] more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 91637: authorized by Linda Ivany, entered by Linda Ivany on 09.10.2009, edited by Matthew Clapham

Creative Commons license: CC BY (attribution)