Where: Argentina (48.4° S, 71.8° W: paleocoordinates 48.4° S, 35.2° W)

• coordinate estimated from map

• small collection-level geographic resolution

When: Rio Mayer Formation (Pueyrredon Group), Late/Upper Barremian (130.0 - 125.5 Ma)

• upper Rio Mayer Formation

• bed-level stratigraphic resolution

Environment/lithology: offshore; lithified, black shale

Size class: macrofossils

Primary reference: M. B. Aguirre-Urreta and H. C. Klinger. 1986. Upper Barremian Heteroceratinae (Cephalopoda, Ammonoidea) from Patagonia and Zululand, with comments on the systematics of the subfamily. Annals of the South African Museum 96(8):315-358 [M. Aberhan/S. Nurnberg/M. Clapham]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 66647: authorized by Wolfgang Kiessling, entered by Uta Merkel on 12.10.2006, edited by Sabine Nürnberg

Creative Commons license: CC BY (attribution)