10 km east-northeast of Cerro Barcino: Late Aptian - Early Albian, Argentina
collected by G. del Corro & O. A. Guitérrez 1961, 1965
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Chubutisaurus insignis n. gen., n. sp.
del Corro 1975
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del Corro 1975 | 1 individual | ||||||||
| MACN 18.222 (5 measurements) | ||||||||||
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Reptilia
- Carcharodontosauridae
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| 4 specimens | ||||||||||
| MACN 18.172 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Chubut | County: | Paso de Indios |
| Coordinates: | 43.4° South, 68.3° West (view map) | ||||
| Paleocoordinates: | 39.6° South, 26.9° West (Wright 2013) | ||||
| Basis of coordinate: | stated in text | ||||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early Cretaceous |
| 10 m.y. bin: | Cretaceous 2-3 - Cretaceous 4 | ||
| Key time interval: | Late Aptian - Early Albian | ||
| Age range of interval: | 119.57 - 110.1 m.y. ago |
Stratigraphy
| Geological group: | Chubut | Formation: | Cerro Barcino | Member: | Puesto La Paloma/Cerro Castaño |
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: sometimes listed as Cerro Barcino member of Gorro Frigio Fm.
Previously Bayo Overo Member. Krause et al. 2020 and Silva Nieto et al. 2017 consider the Bayo Overo member as an undifferentiated correlative of the Puesto La Paloma and Cerro Castaño members that crop out in the eastern localities of the Somuncurá-Cañadón-Asfalto basin, as in these eastern localities, the Puesto La Paloma, Cerro Castaño and Las Plumas members cannot be easily differentiated. Based on Krause et al. 2020 and Carballido et al. 2017. The contact zones between Puesto La Paloma and Cerros Castaño is approximately Aptian-Early Albian at ~118.5-110.8 Ma. | |||||
Lithology and environment
| Primary lithology: | intraclastic,gray,green "siliciclastic" |
| Includes fossils? | Y |
| Lithology description: Rock with "cineritic" aspect, clear greenish-gray color, irregular fracture, small quartz clasts and isolated feldspathic splinters; greenish and/or reddish spots darker than the rock correspond to altered "fémicos". | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils,mesofossils |
| Preservation of anatomical detail: | poor |
| Associated major elements: | some |
| Disassociated major elements: | some |
| Fragmentation: | occasional |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection | ||
| Reason for describing collection: | general faunal/floral analysis | ||
| Museum repositories: | MACN | ||
| Collectors: | G. del Corro & O. A. Guitérrez | Collection dates: | 1961, Feb 1965 |
| Collection method comments: originally discovered by rancher Martínez in 1961 | |||
Metadata
| Also known as: | Chubutisaurus type | ||
| Database number: | 38533 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2004-04-23 11:14:48 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2004-04-23 11:14:48 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 10339. | G. del Corro. 1966. Un nuevo Dinosaurio carnivoro del Chubut [A new carnivorous dinosaur from Chubut]. Communicaciones del Museuo Argentino de Ciencias Naturales "Bernardino Rivadavia" e Institutio Nacional de Investigacion de las Ciencias Naturales: Paleontologia 1(1):1-4 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 59610 | J. F. Bonaparte. 1978. El Mesozoico de America de Sur y sus Tetrapodos [The Mesozoic of South America and its tetrapods]. Opera Lilloana 26:1-596 [M. Carrano/M. Carrano] | |
| 63573 | J. F. Bonaparte. 1984. I dinosauri dell’Argentina [. In G. M. Ronzoni, M. L. Greggio, & T. B. Guarinoni (eds.), Sulle Orme dei Dinosauri 125-143 [M. Carrano/M. Carrano] | |
| 16547 | ETE | J. F. Bonaparte. 1996. Cretaceous tetrapods of Argentina. Münchner Geowissenschaften Abhandlungen 30:73-130 [M. Carrano/M. Carrano/M. Carrano] |
| 13929 | ETE | J. F. Bonaparte and Z. B. Gasparini. 1979. Los sauropodos de los grupos Neuquén y Chubut, y sus relaciones cronologicas [The sauropods of the Neuquén and Chubut Groups, and their chronological relationships]. Actas del VII Congreso Geológico Argentino, Neuquén 2:393-406 [M. Carrano/M. Carrano/M. Carrano] |
| 10338 | G. del Corro. 1975. Un nuevo sauropodo del Cretácico Superior. Actas del Primer Congreso Argentino de Paleontologia y Bioestratigrafia 2:229-240 [M. Carrano/M. Carrano/M. Carrano] | |
| 85641 | O. d. V. Giménez. 1999. Nuevo registro de Sauropoda del Cretácico Inferior de la provincia del Chubut [New report of Sauropoda from the Lower Cretaceous of Chubut province]. XIV Jornadas Argentinas de Paleontología de Vertebrados, Neuquén y Plaza Huincul, 18 al 20 de mayo de 1998, Resúmenes. Ameghiniana 36(1):102 [M. Carrano/M. Carrano] | |
| 79276 | J. M. Krause, J. Ramezani, A. M. Umazano, D. Pol, J. L. Carballido, J. P. Sterli Puerta, N. R. Cúneo and E. S. Bellosi. 2020. High-resolution chronostratigraphy of the Cerro Barcino Formation (Patagonia): Paleobiologic implications for the mid-cretaceous dinosaur- rich fauna of South America. Gondwana Research 80:33-49 [P. Mannion/G. Varnham/G. Varnham] | |
| 10337 | T. H. Rich, P. J. Vickers-Rich, F. E. Novas, R. Cuneo, P. Puerta and R. Vacca. 1998. Theropods from the "Middle" Cretaceous Chubut Group of the San Jorge Sedimentary Basin, central Patagonia. A preliminary note. GAIA 15:111-115 [M. Carrano/M. Carrano/M. Carrano] |