northeast edge, Cancha de Bochas: Carnian, Argentina
collected by R. N. Martínez 1991
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Cynodontia
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Cynodontia indet.
Owen 1861
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Traversodontidae
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Exaeretodon sp.
Cabrera 1943
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Exaeretodon frenguellii
Cabrera 1954
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Goñi and Goin 1991 | |||||||||
| synonym of Exaeretodon argentinus | ||||||||||
| MLP 61-VIII-2-23, MLP 61-VIII-2-44 and PVL 2079, skulls; PVL 1897 and PVL 2468, mandibles; PVL 2458, partial maxillary | ||||||||||
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Ecteniniidae
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Diegocanis elegans n. gen., n. sp.
Martinez et al. 2013
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Martinez et al. 2013 | 1 specimen | ||||||||
| PVSJ 881 | ||||||||||
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Anomodontia
- Stahleckeriidae
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Ischigualastia sp.
Cox 1962
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Reptilia
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Aetosauroides sp.
Casamiquela 1960
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Saurosuchus galilei
Reig 1959
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Eoraptor lunensis n. gen., n. sp.
Sereno et al. 1993
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2 individuals | |||||||||
| PVSJ 512, articulated skeleton; PVSJ 559 (5 measurements) | ||||||||||
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Reptilia
- Herrerasauridae
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Herrerasaurus ischigualastensis
Reig 1963
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| (1 measurement) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | San Juan |
| Coordinates: | 31.1° South, 68.9° West (view map) | ||
| Paleocoordinates: | 47.7° South, 34.6° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | small collection |
Time
| Period: | Triassic | Epoch: | Late/Upper Triassic |
| Stage: | Carnian | 10 m.y. bin: | Triassic 3 |
| *Period: | Late/Upper Triassic | ||
| *International age/stage: | Middle Carnian | ||
| Key time interval: | Carnian | Other zone: | Scaphonyx-Exaeretodon-Herrerasaurus |
| Age range of interval: | 237.00000 - 227.00000 m.y. ago | ||
| Age estimate: | 231.5 to 229 Ma (Ar/Ar) | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Formation: | Ischigualasto | Member: | Cancha de Bochas | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: lower third of formation. Collected from the "Scaphonyx-Exaeretodon-Herrerasaurus
biozone" of Martinez et al. (2011: Science 331: 206) which reportedly represents "a narrow temporal interval from 231.5 to 229 Ma in the latter half of the Carnian stage". | |||||
Lithology and environment
| Primary lithology: | gray,red siltstone |
| Includes fossils? | Y |
| Lithology description: muddy siltstone; "reddish-gray" | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
| Spatial orientation: | life position |
| Preservation of anatomical detail: | good |
| Articulated whole bodies: | all |
| Temporal resolution: | snapshot |
Collection methods and comments
| Collection excludes: | species names | ||
| Collection methods: | selective quarrying,mechanical,field collection | ||
| Reason for describing collection: | taxonomic analysis | ||
| Collectors: | R. N. Martínez | Collection dates: | 1991 |
| Collection method comments: Eoraptor found in "close association" with other taxa listed, but specifics are not given.
PVSJ: Instituto y Museo de Ciencias Naturales, Universidad Nacional de San Juan, San Juan 5400, Argentina | |||
| Taxonomic list comments:"Undescribed carnivorous cynodont" is probably Ecteninion. | |||
Metadata
| Also known as: | Eoraptor type, Valle de la Luna | ||
| Database number: | 24877 | ||
| Authorizer: | M. Carrano, A. Dunhill, G. Lloyd | Enterer: | M. Carrano, G. Lloyd, B. Allen |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2002-08-21 18:40:51 | Last modified: | 2013-11-12 17:20:34 |
| Access level: | the public | Released: | 2002-08-21 18:40:51 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 6971. | P. C. Sereno, C. A. Forster, R. R. Rogers and A. M. Monetta. 1993. Primitive dinosaur skeleton from Argentina and the early evolution of Dinosauria. Nature 361:64-66 [M. Carrano/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] |
| 66778 | R. Goñi and F. Goin. 1991. Morfología dentaria y biomecánica masticatoria de los cinodontes (Reptilia, Therapsida) del Triásico argentino: II. Exaeretodon frenguellii Cabrera (Traversodontidae). Ameghiniana 27:327-336 [A. Dunhill/B. Allen] | |
| 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] | |
| 71465 | R. N. Martinez, E. Fernandez, and O. A. Alcober. 2013. A new non-mammaliaform eucynodont from the Carnian-Norian Ischigualasto Formation, Northwestern Argentina. Revista Brasileira de Paleontologia 16(1):61-76 [G. Lloyd/G. Lloyd] | |
| 48936 | P. C. Sereno, R. N. Martínez, and O. A. Alcober. 2013. Osteology of Eoraptor lunensis (Dinosauria, Sauropodomorpha). 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)):83-179 [M. Carrano/M. Carrano] |