Valle Pintado, Ischigualasto: Carnian, Argentina
collected 2006

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
unclassified
Eucynodontia indet. Kemp 1982
Martínez et al. 2013 1 specimen
Pseudotherium argentinus n. gen., n. sp. Wallace et al. 2019
Wallace et al. 2019
PVSJ 882 (holotype)
Reptilia
Panphagia protos n. gen., n. sp. Martínez and Alcober 2009
1 individual
PVSJ 874
Reptilia - Lagerpetidae
Lagerpetidae indet. (Arcucci 1986)
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/Upper Triassic
Stage:Carnian 10 m.y. bin:Triassic 3
Key time interval:Carnian Other zone: Scaphonyx-Exaeretodon-Herrerasaurus
Age range of interval:237.00000 - 228.00000 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:

34067ETE 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]