Where: Neuquén, Argentina (37.5° S, 69.9° W: paleocoordinates 39.7° S, 57.7° W)
• coordinate based on unpublished field data
• small collection-level geographic resolution
When: Roca Formation (Malargüe Group), Maastrichtian (72.1 - 66.0 Ma)
• K/T boundary (basis of HUR14) is at 0 m. Beds lumped over 1.00 m. Data from bed/horizon refers to midpoint of sampled beds.
• group of beds-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; conglomerate
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 unpublished Ph.D. thesis.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 74087: authorized by Wolfgang Kiessling, entered by Sven Weidemeyer on 21.07.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail | |
Turritellidae indet. Lovén 1847 turret shell
Turritella malaspina turret shell | |
Bivalvia | |
Bivalvia indet. Linnaeus 1758 clam | |
Pseudolimea angusta file clam | |
Ostreoidea sp. Rafinesque 1815 oyster | |
Pycnodonte vesicularis Lamarck 1806 oyster | |
Aphrodina (Tikia) cf. thomsoni venus clam
Aphrodina (Tikia) wilckensi venus clam | |
Deltamya sp. Burmester 2004 clam | |
"Pterotrigonia (Rinetrigonia) windhauseniana" = Trigonia windhauseniana
"Pterotrigonia (Rinetrigonia) windhauseniana" = Trigonia windhauseniana Wilckens 1921 clam |