Laureles Creek: Lujanian, Uruguay
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Mammalia
- Didelphimorphia
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Didelphis cf. albiventris
Lund 1840
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| MNHN-P 3000, fragment of right mandible | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Uruguay | State/province: | Salto |
| Coordinates: | 31.5° South, 57.5° West (view map) | ||
| Paleocoordinates: | |||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | small collection |
Time
| Period: | Quaternary | Epoch: | Pleistocene |
| 10 m.y. bin: | Cenozoic 6 | ||
| Key time interval: | Lujanian | ||
| Age range of interval: | 0.4 - 0.0117 m.y. ago |
Stratigraphy
| Formation: | Sopas | ||||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Manzuetti et al. 2020: Based on the mammalian fossil assemblage, this unit is correlated with deposits from the Late Pleistocene sequence of the Pampean region (Lujanian Stage/ Age) (Cione and Tonni, 2005; Ubilla et al., 2011). Radiocarbon and optically stimulated luminescence (OSL) ages in some outcrops corre- lated mainly with MIS-3 (60-25 ka; Cohen et al., 2013; ICC, 2018), and it also includes outcrops at approximately 14 ka (Ubilla et al., 2016) | |||||
Lithology and environment
| Primary lithology: | not reported |
| Lithology description: Manzuetti et al. 2020: The Sopas Formation, located in northern Uruguay (in particular Artigas, Salto, Tacuarembó and Paysandú departments), is characterized by conglomerates with clay and calcareous matrices, conglomeratic sandstone, siltstone and sandy siltstone. | |
| Environment: | terrestrial indet. |
| Geology comments: Manzuetti et al. 2020: Based on the paleontological content of the Sopas Formation, a wide range of environments can be suggested (lacustrine-fluvial, open areas, semiforested and dense vegetation) (Ubilla and Martínez, 2016). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Database number: | 212323 | ||
| Authorizer: | P. Mannion | Enterer: | G. Varnham |
| Modifier: | P. Mannion | Research group: | vertebrate |
| Created: | 2020-08-11 08:25:33 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2020-08-11 08:25:33 |
| Creative Commons license: | CC0 |
Reference information
Primary reference:
| 73349. | A. Manzuetti, M. Ubilla, D. Perea, R. I. Vezzosi, A. Rinderknecht, M. Ghizzoni, and W. Jones. 2020. The large American opossum Didelphis (Didelphimorphia, Didelphidae) in the Late Pleistocene of Uruguay, and paleoecological remarks. Journal of South American Earth Sciences 98:102437:1-8 [P. Mannion/G. Varnham/P. Mannion] |