KT section Paso del Sapo, Canadón Asfalto Basin, SM58: Danian, Argentina
collected by Aberhan, M., Kiessling, W., Weidemeyer, S. 06042003

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Polychaeta - Sabellida - Serpulidae
Serpula sp. Linnaeus 1758
1 individual
Gastropoda
Gastropoda indet. Cuvier 1795
11 individuals
Pseudotylostoma cf. romeroi
5 individuals
Gastropoda - Ampullinidae
Pseudamaura dubia
15 individuals
spelled with current rank as Ampullina (Pseudamaura)
Gastropoda - Naticidae
Euspira cf. pueyrredonensis
2 individuals
Gastropoda - Neogastropoda - Fasciolariidae
Fusininae informal sp. B Swainson 1840
1 individual
Gastropoda - Neogastropoda - Tudiclidae
Heteroterma cf. tumida
6 individuals
Gastropoda - Aporrhaidae
Struthioptera aff. osiris
20 individuals
Bivalvia
Bivalvia indet. Linnaeus 1758
14 individuals
Bivalvia - Nuculanida - Nuculanidae
Yoldia (Calorhadia) perdita
1 individual
    = Spineilo perdita
Aberhan 2010
Bivalvia - Ostreida
Ostreoidea sp. (Rafinesque 1815)
1 individual
original and current combination Ostreacea
Bivalvia - Ostreida - Ostreidae
Ostrea wilckensi Ihering 1907
6 individuals
Bivalvia - Cardiida - Veneridae
Meretrix chalcedonica
29 individuals
Bivalvia - Hiatellida - Hiatellidae
Panopea patagonica
7 individuals
Panopea sp. (Menard 1807)
3 individuals
Bivalvia - Lucinida - Lucinidae
Pteromyrtea sp. Finlay 1926
1 individual
Bivalvia - Carditida - Carditidae
Venericardia iheringi
13 individuals
Bivalvia - Carditida - Astartidae
Eriphyla meridiana
2 individuals
see common names

Geography
Country:Argentina State/province:Chubut
Coordinates: 42.7° South, 70.0° West (view map)
Paleocoordinates:45.1° South, 58.9° West
Basis of coordinate:unpublished field data
Geographic resolution:small collection
Time
Period:Paleogene Epoch:Paleocene
Stage:Danian 10 m.y. bin:Cenozoic 1
Key time interval:Danian
Age range of interval:66.00000 - 61.60000 m.y. ago
Stratigraphy
Formation:Lefipán
Local section:Estancia San Martin Local bed:82.45 m
Local order:bottom to top
Stratigraphic resolution:group of beds
Stratigraphy comments: K/T boundary (basis of SM30) is at 0 m. Beds lumped over 0.40 m. Data from bed/horizon refers to midpoint of sampled beds.
Lithology and environment
Primary lithology: "carbonate"
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:all microfossils
Collection methods:bulk,mechanical,field collection,observed (not collected)
Reason for describing collection:paleoecologic analysis
Collectors:Aberhan, M., Kiessling, W., Weidemeyer, S. Collection dates:06.04.2003
Metadata
Database number:74161
Authorizer:W. Kiessling, M. Aberhan Enterer:S. Weidemeyer, S. Nurnberg
Modifier:S. Weidemeyer Research group:marine invertebrate
Created:2007-07-26 06:42:19 Last modified:2017-05-23 16:34:15
Access level:authorizer only Released:2009-07-26 06:42:19
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]