KT section Sierra Huantraico, Neuquén Basin, HU31: Danian, Argentina
collected by Aberhan, M., Kiessling, W., Weidemeyer, S. 13032004
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Anthozoa
- Scleractinia
- Flabellidae
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Flabellum sp.
Lesson 1831
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2 individuals | |||||||||
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Gastropoda
- Turritellidae
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Turritella malaspina
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2 individuals | |||||||||
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Bivalvia
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Bivalvia indet.
Linnaeus 1758
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1 individual | |||||||||
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Bivalvia
- Nuculanida
- Malletiidae
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Australoneilo gracilis
(Wilckens 1907)
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1 individual | |||||||||
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Bivalvia
- Ostreida
- Gryphaeidae
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Pycnodonte (Phygraea) burckhardti
(Bohm 1903)
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15 individuals | |||||||||
| [entered as Pycnodonte (Phygrea) burckhardti] | ||||||||||
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Bivalvia
- Carditida
- Carditidae
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Venericardia iheringi
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2 individuals | |||||||||
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Sabellida
- Serpulidae
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Serpula sp.
Linnaeus 1758
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2 individuals | |||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Neuquén |
| Coordinates: | 37.6° South, 69.9° West (view map) | ||
| Paleocoordinates: | 38.4° South, 56.8° West (Wright 2013) | ||
| Basis of coordinate: | unpublished field data | ||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 - 61.6 m.y. ago |
Stratigraphy
| Geological group: | Malargüe | Formation: | Roca | ||
| Local section: | Huantraico | Local bed: | 7.40 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 0.80 m. Data from bed/horizon refers to midpoint of sampled beds. | |||||
Lithology and environment
| Primary lithology: | red marl | ||
| 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: | 13.03.2004 |
Metadata
| Database number: | 74046 | ||
| Authorizer: | W. Kiessling | Enterer: | S. Weidemeyer |
| Modifier: | S. Weidemeyer | Research group: | marine invertebrate |
| Created: | 2007-07-19 07:20:04 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | authorizer only | Released: | 2009-07-19 07:20:04 |
| Creative Commons license: | CC0 |
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] |