Where: Neuquén, Argentina (38.1° S, 68.4° W: paleocoordinates 40.4° S, 56.3° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Jagüel Formation (Malargüe Group), Late/Upper Maastrichtian (70.6 - 66.0 Ma)

• K/T boundary (top of boundary bed) is at 0 m. Beds lumped over 0.10 m. Data from bed/horizon refers to midpoint of sampled beds.

• group of beds-level stratigraphic resolution

Environment/lithology: offshore; lithified, green, yellow, calcareous mudstone

Size classes: macrofossils, mesofossils

Preservation: cast, mold/impression, original calcite, replaced with calcite

Collected by Aberhan, M., Kiessling, W., Scholz, H. in 2003

Collection methods: bulk, mechanical,

Primary reference: S. Weidemeyer. 2007. Molluscs at the K/Pg boundary in Argentina: Extinction and recovery patterns. unpublished Ph.D. thesis. [W. Kiessling/S. Weidemeyer]more details

Purpose of describing collection: paleoecologic analysis

PaleoDB collection 73963: authorized by Wolfgang Kiessling, entered by Sven Weidemeyer on 14.07.2007

Creative Commons license: CC BY (attribution)