Yacimiento 2B, south-western side of the Cerro El Mastil: Late Triassic, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopteri
- Louwoichthyiformes
- Pseudobeaconiidae
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Pseudobeaconia celestae
López-Arbarello and Zavattieri 2008
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| see common names | |||||||
Geography
| Country: | Argentina | State/province: | Mendoza |
| Coordinates: | 32.8° South, 68.9° West (view map) | ||
| Paleocoordinates: | 42.4° South, 31.9° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Late Triassic |
| 10 m.y. bin: | Triassic 3-4 | ||
| Key time interval: | Late Triassic | ||
| Age range of interval: | 237 - 201.4 m.y. ago |
Stratigraphy
| Geological group: | Uspallata | Formation: | Potrerillos | ||
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: Potrerillos Formation, Cuyana Basin, lower Upper
Triassic (Morel et al. 2002b). | |||||
Lithology and environment
| Primary lithology: | lithified siltstone | ||
| Includes fossils? | Y | ||
| Environment: | fluvial-lacustrine indet. | Tectonic setting: | rift |
| Geology comments: "This section was interpreted by Kokogian and Mancilla (1989, pp. 180–182) as corresponding to fluvial low sinuosity courses in a mud floodplain, with crevasses splays, which grades upwards into lacustrine deltas with extended lacustrine sub-environments and pass into euxinic lacustrine black-shale deposits of the Cacheuta Formation." López-Arbarello & Zavattieri 2008 | |||
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Temporal resolution: | snapshot |
| Spatial resolution: | autochthonous |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis |
| Collection method comments: MCNAM-PV, Museo de Ciencias Naturales y Antropológicas ‘J. C. Moyano’, Mendoza, Argentina | |
Metadata
| Database number: | 143295 | ||
| Authorizer: | R. Butler | Enterer: | S. Evers | Research group: | vertebrate |
| Created: | 2013-04-22 21:26:48 | Last modified: | 2013-04-22 06:26:48 |
| Access level: | the public | Released: | 2013-04-22 21:26:48 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 45128. | A. López-Arbarello and A. M. Zavattieri. 2008. Systematic revision of Pseudobeaconia Bordas, 1944, and Mendocinichthys Whitley, 1953 (Actinopterygii: 'Perleidiformes') from the Triassic of Argentina. Palaeontology 51(5):1025-1052 [P. Wagner/P. Wagner] |