KT section Sierra Huantraico, Neuquén Basin, HUR5a: Maastrichtian, Argentina
collected by Aberhan, M., Kiessling, W., Weidemeyer, S. 14032004
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Polychaeta
- Sabellida
- Serpulidae
|
|||||||
|
Serpula sp.
Linnaeus 1758
|
5 individuals | ||||||
|
Bivalvia
|
|||||||
|
Bivalvia indet.
Linnaeus 1758
|
3 individuals | ||||||
|
Bivalvia
- Trigoniida
- Trigoniidae
|
|||||||
|
Pterotrigonia (Rinetrigonia) windhauseniana
(Wilckens 1921)
|
2 individuals | ||||||
| original and current combination Trigonia windhauseniana | |||||||
|
Bivalvia
- Ostreida
- Gryphaeidae
|
|||||||
|
Pycnodonte vesicularis
(Lamarck 1806)
|
2 individuals | ||||||
| recombined as Pycnodonta vesicularis | |||||||
|
Bivalvia
- Pectinida
- Limidae
|
|||||||
|
Pseudolimea angusta
|
16 individuals | ||||||
|
Bivalvia
- Pectinida
- Pectinidae
|
|||||||
|
Camptonectes (Camptochlamys) aff. tutorae
Casadío et al. 2005
|
14 individuals | ||||||
|
Lyriochlamys modestus
|
2 individuals | ||||||
|
Bivalvia
- Nuculida
|
|||||||
|
Nuculoida indet.
Dall 1889
|
1 individual | ||||||
| corrected as Nuculida | |||||||
|
Gastropoda
|
|||||||
|
Gastropoda indet.
Cuvier 1795
|
1 individual | ||||||
|
Gastropoda
- Neogastropoda
- Fasciolariidae
|
|||||||
|
cf. Cryptorhytis philippiana
|
1 individual | ||||||
|
Gastropoda
- Patellida
- Nacellidae
|
|||||||
|
cf. Nacella ovata
|
1 individual | ||||||
| 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| Basis of coordinate: | unpublished field data | ||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: | -35.40 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 2.50 m. Data from bed/horizon refers to midpoint of sampled beds. | |||||
Lithology and environment
| Primary lithology: | green 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:Echinoid plates were reported but not included. | |||
Metadata
| Database number: | 74067 | ||
| Authorizer: | W. Kiessling | Enterer: | S. Weidemeyer |
| Modifier: | M. Manojlovic | Research group: | marine invertebrate |
| Created: | 2007-07-20 04:18:03 | Last modified: | 2017-05-23 16:34:15 |
| Access level: | the public | Released: | 2007-07-20 04:18:03 |
| 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] |