KT section Sierra Huantraico, Neuquén Basin, HU12: Maastrichtian, Argentina
collected by Aberhan, M., Kiessling, W., Weidemeyer, S. 12032004

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda - Turritellidae
Turritella malaspina
1 individual
Gastropoda - Naticidae
Euspira cf. pueyrredonensis
4 individuals
Bivalvia
Bivalvia indet. Linnaeus 1758
13 individuals
Bivalvia - Pectinida - Pectinidae
Camptonectes (Camptochlamys) aff. tutorae Casadío et al. 2005
19 individuals
Camptonectes (Camptochlamys) mahuidaensis
1 individual
Bivalvia - Pectinida - Limidae
Pseudolimea angusta
2 individuals
Pseudolimea informal symmetrica
1 individual
Bivalvia - Pectinida - Anomiidae
Paranomia sp. Conrad 1860
1 individual
    = Anomia sp. Linnaeus 1758
Aberhan 2010
Bivalvia - Ostreida
Ostreoidea sp. (Rafinesque 1815)
1 individual
original and current combination Ostreacea
Bivalvia - Ostreida - Flemingostreidae
Ambigostrea clarae (Ihering 1907)
1 individual
Bivalvia - Cardiida - Tellinidae
Solyma cf. levis
7 individuals
Bivalvia - Cardiida
Protagelus gratus
1 individual
Bivalvia - Cardiida - Veneridae
Aphrodina (Tikia) cf. thomsoni
5 individuals
Aphrodina (Tikia) wilckensi
1 individual
Mesocallista aff. solitaria
4 individuals
Bivalvia - Hiatellida - Hiatellidae
Panopea sp. (Menard 1807)
3 individuals
Bivalvia - Carditida - Astartidae
Eriphyla meridiana
1 individual
Disparilia sp.
2 individuals
Bivalvia - Trigoniida - Trigoniidae
Pacitrigonia patagonica (Feruglio 1937)
2 individuals
Pterotrigonia (Rinetrigonia) windhauseniana (Wilckens 1921)
5 individuals
original and current combination Trigonia windhauseniana
see common names

Geography
Country:Argentina State/province:Neuquén
Coordinates: 37.6° South, 69.9° West (view map)
Paleocoordinates:39.7° South, 57.6° West
Basis of coordinate:unpublished field data
Geographic resolution:small collection
Time
Period:Cretaceous Epoch:Late/Upper Cretaceous
Stage:Maastrichtian 10 m.y. bin:Cretaceous 8
Key time interval:Maastrichtian
Age range of interval:72.10000 - 66.00000 m.y. ago
Stratigraphy
Geological group:Malargüe Formation:Roca
Local section:Huantraico Local bed:-23.60 m
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: K/T boundary (basis of HU23) is at 0 m. Beds lumped over 0.30 m. Data from bed/horizon refers to midpoint of sampled beds.
Lithology and environment
Primary lithology:coarse lithified sandstone
Includes fossils?Y
Environment:transition zone/lower shoreface Tectonic setting:foreland basin
Geology comments: inner shelf environment.
Taphonomy
Modes of preservation:body,cast,mold/impression,original calcite,replaced with calcite
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:good
Temporal resolution:time-averaged
Spatial resolution:parautochthonous
Collection methods and comments
Collection excludes:some macrofossils
Collection methods:bulk,mechanical,field collection,observed (not collected)
Reason for describing collection:paleoecologic analysis
Collectors:Aberhan, M., Kiessling, W., Weidemeyer, S. Collection dates:12.03.2004
Metadata
Database number:74020
Authorizer:W. Kiessling, M. Aberhan Enterer:S. Weidemeyer, S. Nurnberg
Modifier:M. Manojlovic Research group:marine invertebrate
Created:2007-07-17 08:58:47 Last modified:2017-05-23 16:34:15
Access level:the public Released:2007-07-17 08:58:47
Creative Commons license:CC BY
Reference information

Primary reference:
24819. S. Weidemeyer. 2007. Molluscs at the K/Pg boundary in Argentina: Extinction and recovery patterns. unpublished Ph.D. thesis. [W. Kiessling/S. Weidemeyer]

Secondary references:

34080 M. Aberhan. 2010. Cretaceous bivalves: taxonomic opinions. [W. Kiessling/W. Kiessling]