El Cajón Valley: Huayquerian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Testudines
- Chelidae
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Phrynops sp.
Wagler 1830
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de la Fuente 1992 | |||||||||
| PVL 3351, partial carapace and associated fragments | ||||||||||
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Mammalia
- Mylodontidae
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Sphenotherus zavaletianus
Ameghino 1891
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Esteban 1999 | |||||||||
| PVL 2866 | ||||||||||
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Mammalia
- Notoungulata
- Toxodontidae
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Calchaquitherium mixtum n. gen., n. sp.
Nasif et al. 2000
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| PVL 4794 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Catamarca |
| Coordinates: | 26.6° South, 66.3° West (view map) | ||
| Paleocoordinates: | 26.3° South, 64.4° West (Wright 2013) | ||
| Basis of coordinate: | estimated from map | ||
| Geographic resolution: | local area |
Time
| Period: | Neogene |
| 10 m.y. bin: | Cenozoic 6 |
| Key time interval: | Huayquerian |
| Age range of interval: | 8 - 5 m.y. ago |
Stratigraphy
| Formation: | El Morterito | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: The fossiliferous beds correspond to the El Morterito Formation (Turner, 1973), sequence II of the Playa del Zorro ‘‘alloformation’’ (Bossi et al., 1992, 1993; Esteban and Nasif, 1996). The upper part of this sequence (IIb and IIc subsequences) is correlated with the Andalhuala Formation in the Santa Mar ́ıa Valley, Catamarca Province (Bossi et al., 1993). | |||||
Lithology and environment
| Primary lithology: | fine lithified sandstone |
| Secondary lithology: | paleosol/pedogenic,green lithified siltstone |
| Lithology description: thinly-bedded, fine-grained sandstones interbedded with dark greenish siltstones. Interbedded paleosols commonly host calcareous concretions and rhyzoconcretions. | |
| Environment: | "floodplain" |
| Geology comments: These sediments were deposited in a floodplain environment with occasional flash floods, which was rapidly colonized by vegetation. | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Puesto El Molle - Molle Grande | ||
| Database number: | 141369 | ||
| Authorizer: | C. Jaramillo, E. Vlachos, P. Mannion | Enterer: | C. Suarez-Gomez, M. Kouvari, E. Vlachos |
| Modifier: | M. Kouvari | Research group: | vertebrate |
| Created: | 2013-03-26 12:45:39 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | group members | Released: | 2015-03-26 12:45:39 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 45975. | N. L. Nasif, S. Musalem, and E. Cerdeño. 2000. A new toxodont from the late Miocene of Catamarca, Argentina, and a phylogenetic analysis of the Toxodontidae. Journal of Vertebrate Paleontology 30(3):591-600 [C. Jaramillo/C. Suarez-Gomez/C. Suarez-Gomez] |
Secondary references:
| 63676 | M. S. de la Fuente. 1992. Las tortugas Chelidae del Terciario superior y Cuaternario del territorio argentino. Ameghiniana 29(3):211-229 [E. Vlachos/E. Vlachos] | |
| 71052 | G. I. Esteban. 1999. Nuevo registro de Sphenotherus (Xenarthra, Mylodontidae) en el Terciario superior del valle de El Cajon (provincia de Catamarca, Argentina). Revision sistematica del genero. Ameghiniana 36(3):317-321 [P. Mannion/M. Kouvari] |