Cerro Cóndor North: Middle Toarcian, Argentina
collected by J. F. Bonaparte 1978–1982
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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unclassified
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| Bonaparte 1986 | ||||||||||
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Reptilia
- Cetiosauridae
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Patagosaurus fariasi n. gen., n. sp.
Bonaparte 1979
|
5 individuals | |||||||||
| PVL 4170-4172, 4615, 4616 (=MACH-CH 932, 933, 935) (3 measurements) | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Chubut |
| Coordinates: | 43.4° South, 69.2° West (view map) | ||
| Paleocoordinates: | 43.2° South, 14.2° West (Wright 2013) | ||
| Basis of coordinate: | estimated from map | ||
| Altitude: | 1811 meters | ||
| Geographic resolution: | outcrop |
Time
| Period: | Jurassic | Epoch: | Early Jurassic |
| Stage: | Toarcian | 10 m.y. bin: | Jurassic 3 |
| *Period: | Middle Jurassic | ||
| *International age/stage: | Callovian | ||
| Key time interval: | Middle Toarcian | ||
| Age range of interval: | 182.9 - 180.4 m.y. ago | ||
| Age estimate: | 179.17 ± 0.12 to 178.07 ± 0.21 Ma (U/Pb) | ||
| * legacy (obsolete) database fields | |||
Stratigraphy
| Geological group: | Sierra de Olte | Formation: | Cañadón Asfalto | ||
| Stratigraphic resolution: | bed | ||||
| Stratigraphy comments: lower third of formation, "perhaps a little lower" than the Cerro Cóndor locality. Sierra de Olte Group = Lonco Tapial Group
U-Pb dates provided by Pol et al. (2020) | |||||
Lithology and environment
| Primary lithology: | calcareous tuff | ||
| Secondary lithology: | fine carbonaceous sandstone | ||
| Includes fossils? | Y | ||
| Includes fossils? | Y | ||
| Lithology description: "a finely layered calcareous tuff, and is part of a sedimentary package formed by very fine deposits, beds containing carbonized plant remains, and fine sands" | |||
| Environment: | wet floodplain | Tectonic setting: | volcanic basin |
| Geology comments: "the setting corresponds to that of a very wet floodplain" | |||
Taphonomy
| Modes of preservation: | body |
| Lagerst�tten type: | concentrate |
| Degree of concentration: | -single event |
| Size of fossils: | macrofossils |
| Spatial orientation: | random |
| Preservation of anatomical detail: | good |
| Associated major elements: | many |
| Disassociated major elements: | some |
| Disassociated minor elements: | some |
| Fragmentation: | occasional |
| Temporal resolution: | snapshot |
| Spatial resolution: | parautochthonous |
Collection methods and comments
| Collection methods: | selective quarrying,mechanical,field collection | ||
| Rock censused: | 60000 cm2 (area) | ||
| Reason for describing collection: | taxonomic analysis | ||
| Museum repositories: | MACN | ||
| Collectors: | J. F. Bonaparte | Collection dates: | 1978–1982 |
Metadata
| Also known as: | Cerro Condor Norte | ||
| Database number: | 28536 | ||
| Authorizer: | M. Carrano | Enterer: | M. Carrano |
| Modifier: | M. Carrano | Research group: | vertebrate |
| Created: | 2003-02-18 13:21:42 | Last modified: | 2025-02-22 15:12:02 |
| Access level: | the public | Released: | 2003-02-18 13:21:42 |
| Creative Commons license: | CC0 | ||
Reference information
Primary reference:
| 7879. | J. F. Bonaparte. 1979. Dinosaurs: a Jurassic assemblage from Patagonia. Science 205:1377-1378 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 7851 | 5% 31920 | J. F. Bonaparte. 1980. Jurassic tetrapods from South America and dispersal routes. In L. L. Jacobs (ed.), Aspects of Vertebrate History: Essays in Honor of Edwin Harris Colbert 73–98 [M. Carrano/M. Carrano/M. Carrano] |
| 55099 | J. F. Bonaparte. 1981. Inventario de los vertebrados Jurásicos de América del Sur [Inventory of the Jurassic vertebrates of South America]. In W. Volkheimer & E. A. Musaccio (ed.), Cuencas Sedimentarias del Jurásico y Cretácico de América del Sur 2:661-684 [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] | |
| 30646 | ETE | J. F. Bonaparte. 1984. Jurassic and Cretaceous terrestrial vertebrates of South America. National Geographic Society Research Reports (1975) 16:115-125 [M. Carrano/M. Carrano] |
| 7881 | J. F. Bonaparte. 1986. Les dinosaures (Carnosaures, Allosauridés, Sauropodes, Cétosauridés) du Jurassique Moyen de Cerro Cóndor (Chubut, Argentina) [The dinosaurs (carnosaurs, allosaurids, sauropods, cetiosaurids) from the Middle Jurassic of Cerro Cóndor (Chubut, Argentina)]. Annales de Paléontologie (Vert.-Invert.) 72(3):325-386 [M. Carrano/M. Carrano/M. Carrano] | |
| 17767 | ETE | R. A. Coria. 1995. On a monospecific assemblage of sauropod dinosaurs from Patagonia: implications for gregarious behavior. In M. G. Lockley, V. F. dos Santos, C. A. Meyer, & A. P. Hunt (eds.), Aspects of Sauropod Paleobiology. GAIA 10:209-213 [M. Carrano/M. Carrano/M. Carrano] |
| 90624 | F. M. Holwerda, O. W. M. Rauhut, and D. Pol. 2021. Osteological revision of the holotype of the Middle Jurassic sauropod dinosaur Patagosaurus fariasi Bonaparte, 1979 (Sauropoda: Cetiosauridae). Geodiversitas 43(16):575–643 [M. Carrano/M. Carrano] | |
| 76658 | T. S. Myers and A. R. Fiorillo. 2009. Evidence for gregarious behavior and age segregation in sauropod dinosaurs. Palaeogeography, Palaeoclimatology, Palaeoecology 274:96-104 [M. Carrano/M. Carrano] | |
| 74383 | D. Pol, J. Ramezani, K. Gomez, J. L. Carballido, A. Paulina Carabajal, O. W. M. Rauhut, I. H. Escapa and N. R. Cúneo. 2020. Extinction of herbivorous dinosaurs linked to Early Jurassic global warming event. Proceedings of the Royal Society of London B 287:20202310:1-7 [P. Mannion/P. Mannion/P. Mannion] | |
| 13861 | ETE | O. W. M. Rauhut. 2003. A dentary of Patagosaurus (Sauropoda) from the Middle Jurassic of Patagonia. Ameghiniana 40(3):425-432 [M. Carrano/M. Carrano/M. Carrano] |