KT section Bajada del Jagüel, Neuquén Basin, BJG32 (Cretaceous of Argentina)

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• coordinate based on unpublished field data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 0.40 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

• mid to outer shelf environment, below normal wave base.

Size classes: macrofossils, mesofossils

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

Collected by Aberhan, M., Kiessling, W., Weidemeyer, S. in 2004

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 unpublished Ph.D. thesis.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 73954: authorized by Wolfgang Kiessling, entered by Sven Weidemeyer on 14.07.2007, edited by Franco Aspromonte

Creative Commons license: CC BY (attribution)

Taxonomic list

• Fish fragments were reported but not included.
Sedentaria
 Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
Bivalvia
 Ostreida - Gryphaeidae
 Ostreida - Ostreidae
 Ostreida - Pteriidae
Phelopteria sp. Stephenson 1953 pearl oyster
 Pectinida - Entoliidae
 Pectinida - Pectinoidae
Camptonectes (Camptochlamys) aff. tutorae Casadío et al. 2005 scallop
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail