Corral Quemados: Norian, Argentina
collected by G. Bossi & J. Bonaparte 1976
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
|
||||||||||
|
Riojasaurus sp.
Bonaparte 1969
|
3 specimens | |||||||||
| 3 specimens, only 1 described (PVL 4087) | ||||||||||
|
= Sauropodomorpha indet.
Huene 1932
|
Apaldetti et al. 2011 | |||||||||
| PVL 4087; "non-sauropod sauropodomorph" | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | San Juan | County: | Caucete |
| Coordinates: | 31.9° South, 67.2° West (view map) | ||||
| Paleocoordinates: | 40.8° South, 30.0° West | ||||
| Basis of coordinate: | estimated from map | ||||
| 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: | Marayes | Formation: | Quebrada del Barro | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: "upper part of formation, 40 m below disconformity with overlying Los Riscos Fm"
A recent stratigraphic revision (Martinez et al., 2013 (ref. 58021)- supplementary information) proposes that the upper horizon of the Quebrada del Barro containing Leyasaurus marayensis should be classified as a separate stratigraphic unit from the other (lower) horizons of the Quebrada del Barro. The other horizons are assigned to Norian age based on Sphenotitan leyasi occurring in the same horizons as several other Triassic-affinity species. These other species are known from the Norian Los Colorados Fm., which was recently dated using magnetostratigraphy. | |||||
Lithology and environment
| Primary lithology: | not reported |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | medium |
| Fragmentation: | frequent |
Collection methods and comments
| Collection methods: | field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Collectors: | G. Bossi & J. Bonaparte | Collection dates: | 1976 |
| Collection method comments: housed in PVL, Tucumán | |||
Metadata
| Database number: | 139578 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2013-02-14 06:04:30 | Last modified: | 2021-04-08 10:57:40 |
| Access level: | the public | Released: | 2013-02-14 06:04:30 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 44876. | G. E. Bossi and J. F. Bonaparte. 1978. Sobre la presencia de un Dinosaurio Prosauropodo en la Formacion Quebrada del Barro, en el borde australe de la Cuenca de Marayes-El Carrizal (Triásico superior de San Juan) [On the presence of a prosauropod dinosaur in the Quebrada del Barro Formation, southern border of the Marayes-El Carrizal basin (Upper Triassic of San Juan province)]. Acta Geologica Lilloana 15:41-47 [M. Carrano/M. Carrano] |
Secondary references:
| 42432 | C. Apaldetti, R. N. Martinez, O. A. Alcober and D. Pol. 2011. A new basal sauropodomorph (Dinosauria: Saurischia) from Quebrada del Barro Formation (Marayes-El Carrizal Basin), Northwestern Argentina. PLoS ONE 6(11):e26964:1-19 [O. Rauhut/O. Rauhut/M. Carrano] | |
| 60799 | R. N. Martínez, C. Apaldetti, G. Correa, C. E. Colombi, E. Fernández, P. S. Malnis, A. Praderio, D. Abelín, L. G. Benegas, A. Aguilar-Cameo, and O. A. Alcober. 2015. A new Late Triassic vertebrate assemblage from northwestern Argentina. Ameghiniana 52(4):379-390 [R. Butler/R. Butler/M. Carrano] |