KT section Paso del Sapo, Canadón Asfalto Basin, SMKT2 (Cretaceous of Argentina)

Where: Chubut, Argentina (42.7° S, 69.8° W: paleocoordinates 44.8° S, 58.3° W)

• coordinate based on unpublished field data

• small collection-level geographic resolution

When: Lefipán Formation, Maastrichtian (72.1 - 66.0 Ma)

• K/T boundary (basis of SMKT14/SRKT7) is at 0 m. Beds lumped over 0.20 m. Data from bed/horizon refers to midpoint of sampled beds.

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; mudstone

• inner shelf environment.

Size classes: macrofossils, mesofossils

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

Collected by Aberhan, M., Kiessling, W., Scholz, H., Medina, F. A. 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 unpublished Ph.D. thesis.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 74185: authorized by Wolfgang Kiessling, entered by Sven Weidemeyer on 27.07.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
Bivalvia
  -
Bivalvia indet. Linnaeus 1758 clam
 Cardiida - Veneridae
 Hiatellida - Hiatellidae
Panopea sp. Menard 1807 clam