Where: Neuquén, Argentina (37.6° S, 69.9° W: paleocoordinates 39.7° S, 57.6° 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• coordinate based on unpublished field data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 HU23) is at 0 m. Beds lumped over 0.50 m. Data from bed/horizon refers to midpoint of sampled beds.
• group of beds-level stratigraphic resolution
Environment/lithology: transition zone or lower shoreface; lithified 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 unpublished Ph.D. thesis.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 74018: authorized by Wolfgang Kiessling, entered by Sven Weidemeyer on 17.07.2007
Creative Commons license: CC BY (attribution)
Taxonomic list
Gastropoda | |
Turritella malaspina turret shell | |
Bivalvia | |
Bivalvia indet. Linnaeus 1758 clam | |
Inoperna sp. Conrad 1873 mussel | |
Camptonectes (Camptochlamys) aff. tutorae Casadío et al. 2005 scallop | |
Pseudolimea angusta file clam
Pseudolimea "symmetrica" Douglas and Arkell 1932 file clam | |
Solyma cf. levis, "Linearia (Linearia) sp." = Linearis
Solyma cf. levis tellin clam
"Linearia (Linearia) sp." = Linearis Conrad 1860 tellin clam | |
Protagelus gratus clam | |
Mesocallista aff. solitaria venus clam | |
Panopea sp. Menard 1807 clam
Panopea cf. clausa Wilckens 1910 clam | |
Disparilia sp. clam |