Herrera de la base, La Gallinita: Carnian, Argentina
collected 1994
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
- Herrerasauridae
|
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Sanjuansaurus gordilloi n. gen., n. sp.
Alcober and Martínez 2010
|
1 individual | |||||||||
| PVSJ 605 (5 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | San Juan |
| Coordinates: | 30.1° South, 67.9° West (view map) | ||
| Paleocoordinates: | 46.7° South, 33.3° West | ||
| 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 - 227.00000 m.y. ago | ||
| Age estimate: | 231.4 Ma (Ar/Ar) |
Stratigraphy
| Formation: | Ischigualasto | Member: | La Peña | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: 40 m above base of formation, at approx. same level as ash dated to 231.4 Ma; upper levels of member | |||||
Lithology and environment
| Primary lithology: | fine,hematitic,gray,green sandstone |
| Includes fossils? | Y |
| Lithology description: "grey-green, fine-grained sandstone"; bones are reddish brown and covered with a hematite crust | |
| Environment: | "channel" |
| Geology comments: well-drained floodplain with high-sinuosity channels | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Preservation of anatomical detail: | poor |
| Temporal resolution: | snapshot |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | surface (in situ),mechanical,field collection |
| Reason for describing collection: | taxonomic analysis | Collection dates: | 1994 |
Metadata
| Database number: | 98905 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2010-10-22 08:28:37 | Last modified: | 2017-05-23 16:34:15 |
| Access level: | the public | Released: | 2010-10-22 08:28:37 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 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] |
Secondary references:
| 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] |