KT section Sierra Huantraico, Neuquén Basin, HU_Road1 (Cretaceous of Argentina)

Where: Neuquén, Argentina (37.6° S, 69.8° 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• coordinate based on unpublished field data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 HUR14) is at 0 m. Beds lumped over 0.15 m. Data from bed/horizon refers to midpoint of sampled beds.

• group of beds-level stratigraphic resolution

Environment/lithology: transition zone or lower shoreface; sandstone

• inner shelf environment.

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 unpublished Ph.D. thesis.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 74089: authorized by Wolfgang Kiessling, entered by Sven Weidemeyer on 21.07.2007

Creative Commons license: CC BY (attribution)

Taxonomic list

Bivalvia
 Ostreida - Gryphaeidae
Pycnodonte vesicularis Lamarck 1806 oyster
 Pectinida - Limidae
Pseudolimea "symmetrica" Douglas and Arkell 1932 file clam
 Pectinida - Pectinoidae
 Carditida - Astartidae
 Hiatellida - Hiatellidae
Panopea sp. Menard 1807 clam
 Cardiida - Tellinidae
"Linearia (Linearia) cf. semicostata" = Linearis
"Linearia (Linearia) cf. semicostata" = Linearis tellin clam
 Cardiida - Veneridae
 Trigoniida - Trigoniidae
"Pterotrigonia (Rinetrigonia) windhauseniana" = Trigonia windhauseniana
"Pterotrigonia (Rinetrigonia) windhauseniana" = Trigonia windhauseniana Wilckens 1921 clam
Gastropoda
  -
Gastropoda indet. Cuvier 1795 snail
 Cerithioidea - Turritellidae