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• coordinate based on unpublished field data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 0.30 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., Scholz, H. in 2003
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 unpublished Ph.D. thesis.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 73962: authorized by Wolfgang Kiessling, entered by Sven Weidemeyer on 14.07.2007, edited by Wolfgang Kiessling
Creative Commons license: CC BY (attribution)
Taxonomic list
Bivalvia | |
Bivalvia indet. Linnaeus 1758 clam | |
Nuculana cf. amuriensis pointed nut clam | |
Mesocallista aff. solitaria venus clam | |
Phelopteria sp. Stephenson 1953 pearl oyster | |
Amphidonte mendozana Ihering 1907 oyster
Pycnodonte vesicularis Lamarck 1806 oyster | |
Entolium (Entolium) membranaceum Nilsson 1827 scallop | |
Lyriochlamys modestus scallop | |
Pseudolimea angusta file clam | |
Anomia sp. Linnaeus 1758 jingle | |
Grammatodontinae "sp. A", "Nemodon sulcatinus" = Grammatodon (Cosmetodon) sulcatinus
Grammatodontinae "sp. A" Branson 1942 clam
"Nemodon sulcatinus" = Grammatodon (Cosmetodon) sulcatinus Evans and Shumard 1857 clam | |
Gastropoda | |
Cryptorhytis "sp. A" Meek 1876 snail | |
Sedentaria | |
Serpula sp. Linnaeus 1758 | |
Echinoidea | |
Echinoida "irr" Troschel 1872 sea urchin |