Tobas con mamíferos (Laguna de La Bombilla): Casamayoran, Argentina
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
- Boidae
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Boinae indet.
Gray 1825
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Albino 1993 | 1 specimen | ||||||||
| MLP 66-V-4-47, portion of vertebral column with six incomplete trunk vertebrae | ||||||||||
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Mammalia
- Notoungulata
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Notopithecus sp.
Ameghino 1897
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Reguero and Prevosti 2010 | |||||||||
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Mammalia
- Panameriungulata
- Didolodontidae
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Oxybunotherium praecursor n. gen., n. sp.
Pascual 1965
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1 specimen | |||||||||
| MLP 59.II.28.107 | ||||||||||
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Mammalia
- Polydolopidae
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Polydolops thomasi
Ameghino 1897
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Marshall 1982 | 12 specimens | ||||||||
| MLP 59-11-28-81, 59-11-28-82, 59-11-28-83, 59-11-28-84, 59-11-28-85, 66-V-4-21, 66-V-4-22, 66-V-4-23, 66-V-4-24, 66-V-4-26, 66-V-4-27, 69-111-28-28 | ||||||||||
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Amphidolops serrula
Ameghino 1902
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Marshall 1982 | 2 specimens | ||||||||
| MLP 59-11-28-86 and 66-V-4-25 | ||||||||||
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Eudolops tetragonus
Ameghino 1897
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Marshall 1982 | 2 specimens | ||||||||
| MLP 59-11-28-79 and 59-11-28-80 | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Chubut | County: | Paso de Los Indios |
| Coordinates: | 44.2° South, 69.2° West (view map) | ||||
| Paleocoordinates: | 46.7° South, 59.2° West | ||||
| Basis of coordinate: | estimated from map | ||||
| Geographic resolution: | local area |
Time
| Period: | Paleogene | Epoch: | Eocene |
| Stage: | Ypresian | 10 m.y. bin: | Cenozoic 2 |
| Key time interval: | Casamayoran | Mammal zone: | Casamayoran |
| Age range of interval: | 56 - 47.9 m.y. ago |
Stratigraphy
Lithology and environment
| Primary lithology: | concretionary lithified tuff |
| Includes fossils? | Y |
| Lithology description: Tobas y bentonitas rosadas, con frecuentes concreciones silíceas. / Pink tuffs and bentonites with some siliceous concretions | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Aguada de Batistin | ||
| Database number: | 141758 | ||
| Authorizer: | C. Jaramillo, J. Zijlstra, P. Barrett, R. Butler | Enterer: | C. Suarez-Gomez, R. Butler, T. Cleary, J. Zijlstra |
| Modifier: | M. Kouvari | Research group: | vertebrate |
| Created: | 2013-03-31 05:25:13 | Last modified: | 2020-09-22 03:11:05 |
| Access level: | group members | Released: | 2015-03-31 05:25:13 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 45548. | R. Pascual. 1965. Un nuevo Condylarthra (Mammalia) de edad Casamayorense de Paso de Los Indios (Chubut, Argentina). Breves consideraciones sobre la edad Casamayorense. Ameghiniana 4(2):57-65 [C. Jaramillo/C. Suarez-Gomez] |
Secondary references:
| 59238 | A. M. Albino. 1993. Snakes from the Paleocene and Eocene of Patagonia (Argentina): paleoecology and coevolution with mammals. Historical Biology 7:51-69 [P. Barrett/T. Cleary] | |
| 57557 | L. G. Marshall. 1982. Systematics of the extinct South American marsupial family Polydolopidae. Fieldiana Geology 12:1-109 [R. Butler/R. Butler] | |
| 58079 | M. A. Reguero and F. J. Prevosti. 2010. Rodent-like notoungulates (Typotheria) from Gran Barranca, Chubut Province, Argentina: phylogeny and systematics. 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 148-165 [J. Zijlstra/J. Zijlstra] |