Near the road joining Tres Cruces and Mina Aguilar: Lutetian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Mammalia
- Notoungulata
- Notohippidae
|
||||||||||
|
Pampahippus arenalesi
Bond and López 1993
|
||||||||||
| two mandibles | ||||||||||
|
Mammalia
- Cingulata
- Dasypodidae
|
||||||||||
|
Pucatherium parvum
(Herrera et al. 2012)
|
Herrera et al. 2021 | |||||||||
|
Prostegotherium astrifer
Ameghino 1902
|
Herrera et al. 2021 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Jujuy | County: | Humahuaca |
| Coordinates: | 22.9° South, 65.5° West (view map) | ||||
| Paleocoordinates: | 25.3° South, 56.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | small collection |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Lutetian | 10 m.y. bin: | Cenozoic 2 |
| Key time interval: | Lutetian | Mammal zone: | Casamayoran |
| Age range of interval: | 47.80000 - 41.20000 m.y. ago |
Stratigraphy
| Geological group: | Salta | Formation: | Lumbrera | ||
| Stratigraphy comments: Casamayoran SALMA
Powell et al., 2011: Recently, geologic and paleontologic evidence allowed the correlation of the upper levels of Lumbrera with Geste, Casa Grande, and Quebrada de los Colorados Formations. Additionally, these levels were referred to the late-middle Eocene (Casamayoran SALMA -South American Land Mammal Age-, Barrancan subage) by an U/Pb dating of 39.9 Ma . The lower levels of the Lumbrera Formation are here referred to the Vacan subage of the Casamayoran SALMA. Fernicola et al. 2021: new 238U-206Pb isochron age (46.2 Ma) obtained from samples taken on various independent points across paleosol and matrix positioned at the top of the lower section of the Lumbrera Formation. The new age is consistent with the hyperthermal scheme and constrains the deposition of the lower section of the Lumbrera Fm. between 55–46.2 Ma. Subsequently, the upper sections of the Lumbrera Formation are now constrained between 46 and 40 Ma (Lutetian) (see Fernicola et al. 2021: New assemblage of cingulates) | |||||
Lithology and environment
| Primary lithology: | red siltstone |
| Secondary lithology: | green siltstone |
| Lithology description: (translated) "red siltstones over a green band" | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | permineralized |
| Size of fossils: | macrofossils,mesofossils |
| Disassociated major elements: | some |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | MLP |
| Collection method comments: also Depto. de Paleontolgía, Inst. Miguel Lillo, Universidad Nacional de Tucumán (PVL) | |
Metadata
| Database number: | 41706 | ||
| Authorizer: | D. Croft, P. Mannion | Enterer: | D. Croft, G. Varnham |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2004-07-20 06:17:57 | Last modified: | 2022-04-20 07:44:20 |
| Access level: | the public | Released: | 2004-07-20 06:17:57 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 11161. | M. Bond and G. M. López. 1993. El primer Notohippidae (Mammalia, Notoungulata) de la Formación Lumbrera (Grupo Salta) del noroeste Argentino. Consideraciones sobre la sistematica de la familia Notohippidae. Ameghiniana 30(1):59-68 [D. Croft/D. Croft/D. Croft] |
Secondary references:
| 81731 | C. Herrera, G. Esteban, D. A. García-López, V. Deraco, J. Babot and C. Papa. 2021. New Cingulata (Mammalia, Xenarthra) from the Upper Lumbrera Formation (Bartonian, Middle Eocene), Salta Province, Argentina. Revista Brasileira de Paleontologia 24(3):236-244 [P. Mannion/G. Varnham] |