KT section Sierra Huantraico, Neuquén Basin, HUR9: Maastrichtian, Argentina
collected by Aberhan, M., Kiessling, W., Weidemeyer, S. 14032004

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Bivalvia
Bivalvia indet. Linnaeus 1758
3 individuals
Bivalvia - Trigoniida - Trigoniidae
cf. Austrotrigonia pampeana Leanza and Casadío 1991
3 individuals
Pterotrigonia (Rinetrigonia) windhauseniana (Wilckens 1921)
3 individuals
original and current combination Trigonia windhauseniana
Bivalvia - Carditida - Astartidae
Disparilia sp.
2 individuals
Bivalvia - Hiatellida - Hiatellidae
Panopea inferior
3 individuals
Panopea hauthali
1 individual
Panopea cf. clausa (Wilckens 1910)
3 individuals
Bivalvia - Cardiida - Tellinidae
Linearia (Linearia) sp. (Conrad 1860)
1 individual
original and current combination Linearis
Bivalvia - Pholadomyida - Pholadomyidae
Pholadomya sp. Sowerby 1823
2 individuals
Bivalvia - Pectinida - Pectinidae
Camptonectes (Camptochlamys) aff. tutorae Casadío et al. 2005
7 individuals
Lyriochlamys modestus
2 individuals
Bivalvia - Pectinida - Anomiidae
Paranomia sp. Conrad 1860
1 individual
    = Anomia sp. Linnaeus 1758
Aberhan 2010
Bivalvia - Pectinida - Limidae
Pseudolimea angusta
12 individuals
Pseudolimea informal symmetrica
3 individuals
Bivalvia - Ostreida
Ostreoidea sp. (Rafinesque 1815)
1 individual
original and current combination Ostreacea
Bivalvia - Ostreida - Flemingostreidae
Ambigostrea clarae (Ihering 1907)
1 individual
Bivalvia - Ostreida - Gryphaeidae
Pycnodonte vesicularis (Lamarck 1806)
2 individuals
recombined as Pycnodonta vesicularis
Gastropoda - Aporrhaidae
Struthioptera cf. haastiana
3 individuals
see common names

Geography
Country:Argentina State/province:Neuquén
Coordinates: 37.5° South, 69.9° West (view map)
Paleocoordinates:39.7° South, 57.7° 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Basis of coordinate:unpublished field data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 Reef Local bed:-11.45 m
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: K/T boundary (basis of HUR14) 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: mudstone
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:14.03.2004
Taxonomic list comments:Crustacea fragments were reported but not included.
Metadata
Database number:74075
Authorizer:W. Kiessling, M. Aberhan Enterer:S. Weidemeyer, S. Nurnberg
Modifier:M. Manojlovic Research group:marine invertebrate
Created:2007-07-20 10:04:28 Last modified:2017-05-23 16:34:15
Access level:the public Released:2007-07-20 10:04:28
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]