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• coordinate based on unpublished field data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
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 unpublished Ph.D. thesis.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
Sedentaria | |
Serpula sp. Linnaeus 1758 | |
Bivalvia | |
Pycnodonte (Phygraea) vesicularis Lamarck 1806 oyster | |
cf. Ostrea vulselloides oyster | |
Phelopteria sp. Stephenson 1953 pearl oyster | |
Entolium (Entolium) membranaceum Nilsson 1827 scallop | |
Camptonectes (Camptochlamys) aff. tutorae Casadío et al. 2005 scallop | |
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail |