KT section Bajada del Jagüel, Neuquén Basin, BJG4: Danian, Argentina
collected by Aberhan, M., Kiessling, W., Scholz, H. 23032003
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Anthozoa
- Scleractinia
- Flabellidae
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Flabellum sp.
Lesson 1831
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2 individuals | |||||||||
Gastropoda
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Gastropoda indet.
Cuvier 1795
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1 individual | |||||||||
Bivalvia
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Bivalvia indet.
Linnaeus 1758
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3 individuals | |||||||||
Bivalvia
- Pectinida
- Pectinidae
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Camptonectes (Camptonectes) sp.
Meek 1864
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6 individuals | |||||||||
Bivalvia
- Ostreida
- Gryphaeidae
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Pycnodonte (Phygraea) burckhardti
(Bohm 1903)
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12 individuals | |||||||||
[entered as Pycnodonte (Phygrea) burckhardti] | ||||||||||
Bivalvia
- Lucinida
- Lucinidae
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Pteromyrtea sp.
Finlay 1926
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6 individuals | |||||||||
Bivalvia
- Nuculanida
- Nuculanidae
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Saccella cf. tumida
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1 individual | |||||||||
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Basis of coordinate: | unpublished field data | ||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
Geological group: | Malargüe | Formation: | Jagüel | ||
Local section: | Bajada del Jagüel | Local bed: | 1.44 m | ||
Local order: | bottom to top | ||||
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: K/T boundary (top of boundary bed) is at 0 m. Beds lumped over 0.25 m. Data from bed/horizon refers to midpoint of sampled beds. |
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., Scholz, H. | Collection dates: | 23.03.2003 |
Taxonomic list comments:Echinoid spines and plates were reported but not included. |
Metadata
Database number: | 73974 | ||
Authorizer: | W. Kiessling | Enterer: | S. Weidemeyer |
Modifier: | S. Weidemeyer | Research group: | marine invertebrate |
Created: | 2007-07-16 02:52:26 | Last modified: | 2017-05-23 16:34:15 |
Access level: | authorizer only | Released: | 2009-07-16 02:52:26 |
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] |