Valle Pintado, Ischigualasto: Carnian, Argentina
collected 2006
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
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Eucynodontia indet.
Kemp 1982
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Martínez et al. 2013 | 1 specimen | ||||||||
Pseudotherium argentinus n. gen., n. sp.
Wallace et al. 2019
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Wallace et al. 2019 | |||||||||
PVSJ 882 (holotype) | ||||||||||
Reptilia
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Panphagia protos n. gen., n. sp.
Martínez and Alcober 2009
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1 individual | |||||||||
PVSJ 874 | ||||||||||
Reptilia
- Lagerpetidae
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Lagerpetidae indet.
(Arcucci 1986)
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Martínez et al. 2013 | 1 specimen | ||||||||
PVSJ 883 | ||||||||||
see common names |
Geography
Country: | Argentina | State/province: | San Juan |
Coordinates: | 30.1° South, 67.9° West (view map) | ||
Paleocoordinates: | 46.8° South, 33.3° West | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | small collection |
Time
Period: | Triassic | Epoch: | Late Triassic |
Stage: | Carnian | 10 m.y. bin: | Triassic 3 |
Key time interval: | Carnian | Other zone: | Scaphonyx-Exaeretodon-Herrerasaurus |
Age range of interval: | 237 - 227 m.y. ago |
Stratigraphy
Formation: | Ischigualasto | Member: | La Peña | ||
Stratigraphic resolution: | bed | ||||
Stratigraphy comments: 40 m above base of formation; approx same level as ash dated at 228.3 Ma; upper part of member, lower portion of Panphagia type, lower portion of Scaphonyx-Exaeretodon-Herrerasaurus biozone; late Carnian
Wallace et al. 2019: The new specimen was found at the Valle Pintado locality, which is located in the upper lev- els of the La Peña Member and in the lower portion of the Scaphonyx-Exaeretodon-Herrera- saurus biozone. The material was found in a fossiliferous layer 40 m above the base of the Formation. Interlayered volcanic ash layers above the base and below the top of the formation provide chronostratigraphic control and yielded ages of 231.4 ± 0.3 Ma and 225.9 ± 0.9 Ma [55,56]. |
Lithology and environment
Primary lithology: | fine,concretionary,gray,green calcareous sandstone |
Secondary lithology: | conglomerate |
Includes fossils? | Y |
Lithology description: "The red-brown-colored bones were embedded in a grey-green fine-grained sandstone matrix with calcareous cement. Several pieces were encased in light-grey calcareous concretion." | |
Environment: | "floodplain" |
Geology comments: Wallace et al. 2019: The La Peña Member consists of multistory channel sandstones and conglomerates covered by poorly-drained floodplain mudstones. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Associated major elements: | all |
Fragmentation: | frequent |
Collection methods and comments
Collection methods: | selective quarrying,surface (in situ),field collection |
Reason for describing collection: | taxonomic analysis | Collection dates: | 2006 |
Collection method comments: collected during 2006 field season, Museo de Ciencias Naturales of San Juan
Wallace et al. 2019: (PVSJ 882) was found in 2006 by RNM during a field trip to the Ischigualasto Formation carried out by the Instituto y Museo de Ciencias Naturales of the Universidad Nacional de San Juan. |
Metadata
Also known as: | Panphagia type | ||
Database number: | 87090 | ||
Authorizer: | M. Carrano, P. Mannion | Enterer: | M. Carrano, G. Varnham |
Modifier: | M. Carrano | Research group: | vertebrate |
Created: | 2009-03-03 14:31:11 | Last modified: | 2021-04-08 13:32:38 |
Access level: | the public | Released: | 2009-03-03 14:31:11 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
29302. | ETE | R. N. Martínez and O. A. Alcober. 2009. A basal sauropodomorph (Dinosauria: Saurischia) from the Ischigualasto Formation (Triassic, Carnian) and the early evolution of Sauropodomorpha. PLoS ONE 4(2 (e4397)):1-12 [M. Carrano/M. Carrano] |
Secondary references:
34067 | ETE | O. A. Alcober and R. N. Martínez. 2010. A new herrerasaurid (Dinosauria, Saurischia) from the Upper Triassic Ischigualasto Formation of northwestern Argentina. Zookeys 63:55-81 [M. Carrano/M. Carrano] |
48761 | R. N. Martínez, C. Apaldetti, O. A. Alcober, C. E. Colombi, P. C. Sereno, E. Fernandez, P. Santi Malnis, G. A. Correa, and D. Abelin. 2013. Vertebrate succession in the Ischigualasto Formation. In P. C. Sereno (ed.), Basal Sauropodomorphs and the Vertebrate Fossil Record of the Ischigualasto Formation (Late Triassic: Carnian–Norian) of Argentina. Society of Vertebrate Paleontology Memoir 12. Journal of Vertebrate Paleontology 32(6 (s1)):10-30 [M. Carrano/M. Carrano/M. Carrano] | |
60798 | R. N. Martínez, C. Apaldetti, G. A. Correa and D. Abelín. 2016. A Norian lagerpetid dinosauromorph from the Quebrada del Barro Formation, northwestern Argentina. Ameghiniana 53(1):1-13 [R. Butler/R. Butler/M. Carrano] | |
69712 | R. V. S. Wallace, R. Martínez, and T. Rowe. 2019. First record of a basal mammaliamorph from the early Late Triassic Ischigualasto Formation of Argentina. PLoS ONE 14(8):e0218791 [P. Mannion/G. Varnham/P. Wagner] |