Bryn Gwyn: Burdigalian, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Cetacea
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Argyrocetus patagonicus n. gen., n. sp.
Lydekker 1894
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Lydekker 1894 | |||||||||
It is not clear which locality this specimen comes from. | ||||||||||
Gaetán et al. 2025 | 6 specimens | |||||||||
Mammalia
- Cetacea
- Squalodontidae
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Cozzuol et al. 1989 | ||||||||||
Mammalia
- Cetacea
- Kentriodontidae
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Cozzuol 1986 | ||||||||||
Mammalia
- Cetacea
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Aondelphis talen n. gen., n. sp.
Viglino et al. 2018
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Viglino et al. 2018 | 1 specimen | ||||||||
MPEF-PV 517 | ||||||||||
Mammalia
- Cetacea
- Eurhinodelphinidae
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Cozzuol et al. 1989 | ||||||||||
Mammalia
- Cetacea
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Lambert et al. 2021 | ||||||||||
Mammalia
- Cetacea
- Physeteridae
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Lydekker 1894 | ||||||||||
It is not clear which locality this specimen comes from. | ||||||||||
Reptilia
- Sphenisciformes
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Sphenisciformes indet.
Sharpe 1891
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Cozzuol et al. 1989 | |||||||||
Reptilia
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Cozzuol et al. 1989 | ||||||||||
Cozzuol et al. 1989 | ||||||||||
Reptilia
- Spheniscidae
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Cozzuol et al. 1989 | ||||||||||
Reptilia
- Anseriformes
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Anseriformes indet.
Wagler 1831
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Cozzuol et al. 1989 | |||||||||
Reptilia
- Testudines
- Dermochelyidae
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Dermochelyidae indet.
Lydekker 1889
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de la Fuente and Vucetich 1998 | |||||||||
MPEF-PV 565, shell fragments | ||||||||||
Lingulata
- Discinida
- Disciniidae
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Pérez et al. 2023 | 1 specimen | |||||||||
CNP-PIIc 594, dorsal valve | ||||||||||
see common names |
Geography
Country: | Argentina | State/province: | Chubut |
Coordinates: | 43.3° South, 65.4° West (view map) | ||
Paleocoordinates: | 42.8° South, 62.4° West (Wright 2013) | ||
Basis of coordinate: | estimated from map |
Time
Period: | Neogene | Epoch: | Miocene |
Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
Key time interval: | Burdigalian | ||
Age range of interval: | 20.45 - 15.98 m.y. ago |
Stratigraphy
Formation: | Gaiman | ||||
Stratigraphic resolution: | formation | ||||
Stratigraphy comments: lower part of the Gaiman Formation (Marx & Fordyce, 2015) |
Lithology and environment
Primary lithology: | tuffaceous,gray siltstone |
Secondary lithology: | tuffaceous,gray sandstone |
Includes fossils? | Y |
Lithology description: gray tuffaceous siltstones and sandstones | |
Environment: | marine indet. |
Taphonomy
Modes of preservation: | body,replaced with phosphate |
Size of fossils: | macrofossils |
Preservation of anatomical detail: | good |
Disassociated minor elements: | all |
Collection methods and comments
Collection methods: | surface (in situ) |
Reason for describing collection: | taxonomic analysis |
Taxonomic list comments:Taxa listed by Lyddeker 1894 were assigned to this collection, even though he only lists the location as "Chubut" |
Metadata
Also known as: | Loma Blanca | ||
Database number: | 45886 | ||
Authorizer: | M. Uhen, E. Vlachos | Enterer: | M. Uhen, F. Aspromonte, E. Vlachos |
Modifier: | M. Uhen | ||
Created: | 2004-12-11 14:09:04 | Last modified: | 2025-02-24 15:22:50 |
Access level: | the public | Released: | 2004-12-11 14:09:04 |
Creative Commons license: | CC0 |
Reference information
Primary reference:
12217. | A. L. Cione and M. A. Cozzuol. 1990. Reidentification of Portheus patagonicus Ameghino, 1901, a supposed fish from the Middle Tertiary of Patagonia as a delphinoid cetacean. Journal of Paleontology 64(3):451-453 [M. Uhen/M. Uhen/J. Alroy] |
Secondary references:
15238 | M. Cozzuol. 1986. Primer registro de la familia Kentriodontidae (delphinoidea: Cetacea) para el Oligoceno Tarido-Mioceno temprano de Patagonia. Boletin Informativo Associacion Paleontologica Argentina 15:14-14 [M. Uhen/M. Uhen] | |
15235 | M. Cozzuol, G. Humbert Lan, P. Puerta, M. A. Ferrero, and R. Taylor. 1989. Hallazgos recientes de vertebrados marinos en el area de Puerto Madry Y Valle Inferior del Rio Chubut, Chubut, Argentina. Ameghiniana 26(3-4):242-242 [M. Uhen/M. Uhen] | |
64145 | M. S. de la Fuente and M. G. Vucetich. 1998. Nuevos materiales de tortugas cryptodiras miocenas del Valle de Chubut, Argentina. Ameghiniana 35(2):211-215 [E. Vlachos/E. Vlachos] | |
91089 | C. M. Gaetán, M. R. Buono, Y. Tanaka, N. D. Farroni, and V. N. Milano. 2025. Echoes from the Miocene: tracing the anatomy and phylogeny of Prosqualodon australis (Cetacea: Odontoceti). Journal of Systematic Palaeontology 23(1):2455753 [M. Uhen/M. Uhen] | |
73186 | O. Lambert, A. Collareta, A. Benites-Palomino, C. Di Celma, C. Muizon, M. Urbina, and G. Bianucci. 2021. A new small, mesorostrine inioid (Cetacea, Odontoceti, Delphinida) from four upper Miocene localities in the Pisco Basin, Peru. Papers in Palaeontology 7(2):1043-1064 [M. Uhen/M. Uhen/M. Uhen] | |
12338 | R. Lydekker. 1894. Cetacean skulls from Patagonia. Anales del Museo de la Plata II:1-13 [M. Uhen/M. Uhen/M. Uhen] | |
12337 | F. P. Moreno. 1892. Lijeros apuntes sobre dos generos de cetaceos fosiles de la Republica Argentina. Revista del Museo de La Plata 3:393-400 [M. Uhen/M. Uhen/M. Uhen] | |
88214 | D. E. Pérez, N. D. Farroni, A. A. Mosquera and J. I. Cuitiño. 2023. First discinid brachiopods (Brachiopoda: Lingulida) from the Cenozoic of Patagonia (Gaiman Formation, Lower Miocene, Argentina). Ameghiniana 60(3):203-215 [E. Vlachos/F. Aspromonte] | |
61186 | M. Viglino, M. R. Buono, C. S. Gutstein, M. A. Cozzuol, and J. I. Cuitiño. 2018. A new dolphin from the early Miocene of Patagonia, Argentina: Insights into the evolution of Platanistoidea in the Southern Hemisphere. Acta Palaeontologica Polonica 63(2):261-277 [M. Uhen/J. Ju/P. Mannion] | |
57933 | M. G. Vucetich, A. G. Kramarz, and A. M. Candela. 2010. Colhuehuapian rodents from Gran Barranca and other Patagonian localities: the state of the art. In R. H. Madden, A. A. Carlini, M. G. Vucetich, R. F. Kay (eds.), The Paleontology of Gran Barranca: Evolution and Environmental Change through the Middle Cenozoic of Patagonia 206-219 [J. Zijlstra/J. Zijlstra] |