Cerro Azul CA 29: Danian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Ostracoda
- Podocopida
- Pectocytheridae
|
|||||||
|
Keijia huantraicoensis
(Bertels 1969)
|
6 specimens | ||||||
|
Keijia kratistos
Ceolin et al. 2015
|
15 specimens | ||||||
|
Ostracoda
- Podocopida
- Loxoconchidae
|
|||||||
|
? Sagmatocythere sp.
|
2 specimens | ||||||
|
Palmoconcha similis
Bertels 1973
|
21 specimens | ||||||
|
Ostracoda
- Podocopida
- Cytheruridae
|
|||||||
|
Cytheropteron hyperdictyon n. sp.
Ceolin et al. 2015
|
1 specimen | ||||||
|
Ostracoda
- Podocopida
- Bythocytheridae
|
|||||||
|
Bythoceratina rocana
Bertels 1973
|
2 specimens | ||||||
| original and current combination Bythocythere rocana | |||||||
|
Paracypris jonesi
Bertels 1973
|
2 specimens | ||||||
|
Ostracoda
- Podocopida
- Trachyleberididae
|
|||||||
|
Huantraiconella prima
Bertels 1968
|
6 specimens | ||||||
|
Togoina argentinensis
|
7 specimens | ||||||
|
Neoveenia argentinensis
Bertels 1969
|
29 specimens | ||||||
|
Orthrocosta atopos
Ceolin et al. 2015
|
4 specimens | ||||||
|
Henryhowella (Wichmannella) praealtus
Ceolin et al. 2015
|
10 specimens | ||||||
|
Actinocythereis biposterospinata
Bertels 1973
|
1 specimen | ||||||
|
Actinocythereis indigena
Bertels 1969
|
9 specimens | ||||||
|
Ostracoda
- Podocopida
- Candonidae
|
|||||||
|
Paracypris pernambucensis
|
2 specimens | ||||||
|
? Paracypris sp.
Sars 1866
|
2 specimens | ||||||
|
Paracypris imaguncula
Ceolin et al. 2015
|
1 specimen | ||||||
|
Paracypris bertelsae
Ceolin et al. 2015
|
5 specimens | ||||||
|
Ostracoda
- Podocopida
- Pontocyprididae
|
|||||||
|
Argilloecia abnormalis
Ceolin et al. 2015
|
10 specimens | ||||||
|
Ostracoda
- Platycopida
- Cytherellidae
|
|||||||
|
Cytherella saraballentae
Ceolin et al. 2015
|
19 specimens | ||||||
| see common names | |||||||
Geography
| Country: | Argentina | State/province: | Neuquén |
| Coordinates: | 38.8° South, 67.9° West (view map) | ||
| Paleocoordinates: | 41.4° South, 56.3° West | ||
| Basis of coordinate: | stated in text |
Time
| Period: | Paleogene | Epoch: | Paleocene |
| Stage: | Danian | 10 m.y. bin: | Cenozoic 1 |
| Key time interval: | Danian | Nannofossil zone: | NP3 |
| Age range of interval: | 66.00000 - 61.60000 m.y. ago |
Stratigraphy
| Formation: | Jagüel | ||
| Local section: | Cerro Azul | Local bed: | 43 m |
| Local order: | bottom to top |
Lithology and environment
| Primary lithology: | siltstone |
| Environment: | marine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | microfossils |
Collection methods and comments
| Collection methods: | selective quarrying,chemical,peroxide,field collection,survey of museum collection |
| Rock censused: | 20 g |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: Twenty-seven outcrop samples were studied, and approximately 20 g of dried rock was crushed and soaked in 200 mL of a hydrogen peroxide solution (H2O2) for 24 h, at a concentration of 35%. Residues were then washed and divided into grain fractions 63, 180 and 250 lm and dried at 60°C. All ostracods were hand-picked under a stereo microscope from each size fraction. Selected specimens were imaged in a EVO MA15 Zeiss scanning electron microscope at the Instituto Tecnologico de Micropaleontologia (itt Fossil) of the Universidade do Vale do Rio dos Sinos, Brazil. | |
Metadata
| Database number: | 232005 | ||
| Authorizer: | E. Vlachos | Enterer: | E. Vlachos |
| Modifier: | E. Vlachos | ||
| Created: | 2023-10-10 14:11:58 | Last modified: | 2023-10-10 14:12:52 |
| Access level: | the public | Released: | 2023-10-10 14:11:58 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 74039. | D. Ceolin, R. Whatley, G. Fauth and A. Concheyro. 2015. New genera and species of Ostracoda from the Maastrichtian and Danian of the Neuquén Basin, Argentina. Papers in Palaeontology 1(4): 425-495 [P. Wagner/P. Wagner/E. Vlachos] |