KT section Opaso, Neuquén Basin, OP30: Danian, Argentina
collected by Aberhan, M., Kiessling, W., Weidemeyer, S. 18032004
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Gastropoda
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Gastropoda indet.
Cuvier 1795
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6 individuals | |||||||||
Gastropoda
- Neogastropoda
- Fasciolariidae
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Cryptorhytis informal sp. A
Meek 1876
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2 individuals | |||||||||
Gastropoda
- Aporrhaidae
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Struthioptera sp.
Finlay and Marwick 1937
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1 individual | |||||||||
Gastropoda
- Patellida
- Nacellidae
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cf. Nacella ovata
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1 individual | |||||||||
Bivalvia
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Bivalvia indet.
Linnaeus 1758
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2 individuals | |||||||||
Bivalvia
- Nuculanida
- Nuculanidae
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Nuculana cf. amuriensis
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4 individuals | |||||||||
Bivalvia
- Nuculanida
- Malletiidae
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Australoneilo gracilis
(Wilckens 1905)
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4 individuals | |||||||||
Bivalvia
- Lucinida
- Lucinidae
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Pteromyrtea sp.
Finlay 1926
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3 individuals | |||||||||
Bivalvia
- Carditida
- Carditidae
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Venericardia iheringi
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3 individuals | |||||||||
Bivalvia
- Carditida
- Astartidae
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Disparilia sp.
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2 individuals | |||||||||
Bivalvia
- Pectinida
- Pectinidae
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Camptonectes (Camptonectes) sp.
Meek 1864
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5 individuals | |||||||||
Bivalvia
- Ostreida
- Pinnidae
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Pinna cf. freneixae
Zinsmeister and Macellari 1988
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1 individual | |||||||||
Bivalvia
- Ostreida
- Gryphaeidae
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Pycnodonte (Phygraea) burckhardti
(Bohm 1903)
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13 individuals | |||||||||
[entered as Pycnodonte (Phygrea) burckhardti] | ||||||||||
Bivalvia
- Arcida
- Parallelodontidae
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Nemodon sulcatinus
(Evans and Shumard 1857)
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11 individuals | |||||||||
recombined as Grammatodon (Cosmetodon) sulcatinus | ||||||||||
Anthozoa
- Scleractinia
- Flabellidae
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Flabellum sp.
Lesson 1831
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2 individuals | |||||||||
see common names |
Geography
Country: | Argentina | State/province: | Neuquén |
Coordinates: | 38.1° South, 68.4° West (view map) | ||
Paleocoordinates: | 40.6° South, 56.8° 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
Lithology and environment
Primary lithology: | gray,green lithified calcareous mudstone | ||
Includes fossils? | Y | ||
Environment: | offshore | Tectonic setting: | foreland basin |
Geology comments: mid to outer shelf environment, below normal wave base. |
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: | 18.03.2004 |
Collection method comments: Number of individuals was determined according to standard procedures. Bivalves: articulated valves plus larger number of right or left valves plus half of undetermined fragments. | |||
Taxonomic list comments:Echinoid plates were found but not reported. |
Metadata
Database number: | 73937 | ||
Authorizer: | W. Kiessling | Enterer: | S. Weidemeyer |
Modifier: | S. Weidemeyer | Research group: | marine invertebrate |
Created: | 2007-07-13 07:17:35 | Last modified: | 2017-05-23 16:34:15 |
Access level: | authorizer only | Released: | 2009-07-13 07:17:35 |
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] |