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• coordinate based on unpublished field data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 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
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 unpublished Ph.D. thesis.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 74085: authorized by Wolfgang Kiessling, entered by Sven Weidemeyer on 21.07.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Echinoidea | |
Echinoida indet. Troschel 1872 sea urchin | |
Bivalvia | |
Bivalvia indet. Linnaeus 1758 clam | |
Musculus sp. Roding 1798 mussel | |
Camptonectes (Camptochlamys) aff. tutorae Casadío et al. 2005 scallop | |
Pseudolimea angusta file clam
Pseudolimea "symmetrica" Douglas and Arkell 1932 file clam | |
Disparilia sp. clam | |
Panopea sp. Menard 1807 clam
Panopea cf. clausa Wilckens 1910 clam | |
Pholadomya sp. Sowerby 1823 clam | |
cf. Austrotrigonia pampeana Leanza and Casadío 1991 clam | |
Gastropoda | |
Gastropoda indet. Cuvier 1795 snail | |
Turritellidae indet. Lovén 1847 turret shell
Turritella malaspina turret shell | |