El Challao: Norian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Actinopteri
- Perleidiformes
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Mendocinia brevis n. gen., n. sp.
Bordas 1944
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22 specimens | |||||||||
| recombined as Mendocinichthys brevis | ||||||||||
| MACN 15350 (Lectotype), 15351; AMNH 8276–8295 | ||||||||||
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Elonichthyiformes
- Acrolepidae
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Challaia striata
Rusconi 1946
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López-Arbarello et al. 2010 | |||||||||
| nomen dubium belonging to Acrolepidae | ||||||||||
| MCNAM-PV 49 (Holotype) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Mendoza |
| Coordinates: | 32.9° South, 68.9° West (view map) | ||
| Paleocoordinates: | 42.1° South, 31.6° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Late/Upper Triassic |
| Stage: | Norian | 10 m.y. bin: | Triassic 4 |
| Key time interval: | Norian | ||
| Age range of interval: | 227.00000 - 208.50000 m.y. ago |
Stratigraphy
| Geological group: | Uspallata | Formation: | Potrerillos | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: Potrerillos Formation, Cuyana Basin, lower Upper Triassic (Morel et al. 2002b). "Cacheuta Series"; middle of formation | |||||
Lithology and environment
| Primary lithology: | planar lamination lithified "shale" |
| Lithology description: "a finely laminated shale" | |
| Environment: | fluvial-lacustrine indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | good |
| Fragmentation: | occasional |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,survey of museum collection |
| Reason for describing collection: | taxonomic analysis |
| Museum repositories: | AMNH,MACN |
Metadata
| Database number: | 117884 | ||
| Authorizer: | M. Clapham | Enterer: | P. Elliott, C. Feng |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2011-09-28 08:27:31 | Last modified: | 2014-07-14 14:38:19 |
| Access level: | the public | Released: | 2011-09-28 08:27:31 |
| 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] |
Secondary references:
| 37776 | A. López-Arbarello, O. W. R. Rauhut, and E. Cerdeño. 2010. The Triassic fish faunas of the Cuyana Basin, Western Argentina. Palaeontology 53:249-276 [M. Clapham/P. Elliott] |