La Flecha ranch: Albian, Argentina
collected 2012-2015
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Reptilia
|
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Theropoda indet.
(Marsh 1881)
|
Carballido et al. 2017 | |||||||||
| 57 teeth | ||||||||||
|
Titanosauria indet.
Bonaparte and Coria 1993
|
Carballido et al. 2017 | |||||||||
| MPEF-PV 3400 - holotype; paratypes: MPEF-PV 3372, 3375, 3391-3399 | ||||||||||
|
= Patagotitan mayorum n. gen., n. sp.
Carballido et al. 2017
|
Carballido et al. 2016 | |||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Chubut |
| Coordinates: | 43.8° South, 68.6° West (view map) | ||
| Paleocoordinates: | 49.3° South, 40.4° West | ||
| Basis of coordinate: | based on nearby landmark | ||
| Geographic resolution: | small collection |
Time
| Period: | Cretaceous | Epoch: | Early/Lower Cretaceous |
| Stage: | Albian | 10 m.y. bin: | Cretaceous 4 |
| Key time interval: | Albian | ||
| Age range of interval: | 113.00000 - 100.50000 m.y. ago | ||
| Age estimate: | 101.62 ± 0.18 Ma (U/Pb) |
Stratigraphy
| Geological group: | Chubut | Formation: | Cerro Barcino | Member: | Cerro Castaño |
| Stratigraphic resolution: | group of beds | ||||
| Stratigraphy comments: 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: | muddy sandstone |
| Secondary lithology: | sandy mudstone |
| Includes fossils? | Y |
| Includes fossils? | Y |
| Lithology description: interbedded muddy sandstones and sandy mudstones, with thin intercalations of fine-grained sandstone bodies | |
| Environment: | "floodplain" |
| Geology comments: fluvial floodplain with recurrent episodes of flooding | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Collection methods: | field collection |
| Reason for describing collection: | taxonomic analysis | Collection dates: | 2012-2015 |
Metadata
| Also known as: | La Flecha farm | ||
| Database number: | 187736 | ||
| Authorizer: | P. Mannion, M. Carrano | Enterer: | P. Mannion, M. Carrano |
| Modifier: | G. Varnham | Research group: | vertebrate |
| Created: | 2017-08-09 04:17:15 | Last modified: | 2022-03-04 07:41:47 |
| Access level: | the public | Released: | 2017-08-09 04:17:15 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 76319. | J. L. Carballido, D. Pol, A. Otero, I. A. Cerda, L. Salgado, A. C. Garrido, J. Ramezzani, N. R. Cúneo, and M. J. Krause. 2016. A new giant titanosaur from the Early Cretaceous of Chubut sheds light to giant titanosaur evolution. XXX Jornadas Argentinas de Paleontología de Vertebrados. Resúmenes. Ameghiniana 53(6 (suppl.)):11 [M. Carrano/M. Carrano/M. Carrano] |
Secondary references:
| 63018 | J. L. Carballido, D. Pol, A. Otero, I. A. Cerda, L. Salgado, A. C. Garrido, J. Ramezani, N. R. Cúneo, and J. M. Krause. 2017. A new giant titanosaur sheds light on body mass evolution among sauropod dinosaurs. Proceedings of the Royal Society of London B 284:20171219:1-10 [P. Mannion/P. Mannion] | |
| 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] |