Cerro Blanco, Casamayoran: Bartonian, Argentina
collected by Scarritt Expedition 1930
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia
- Notoungulata
- Oldfieldthomasiidae
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Oldfieldthomasia debilitata
(Ameghino 1901)
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Simpson 1967 | |||||||||
original and current combination Acoelodus debilitatus | ||||||||||
AMNH 28600, cranium | ||||||||||
Mammalia
- Notoungulata
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Notopithecus sp.
Ameghino 1897
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Reguero and Prevosti 2010 | |||||||||
Mammalia
- Astrapotheria
- Trigonostylopidae
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Albertogaudrya unica
Ameghino 1901
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Simpson 1967 | 2 specimens | ||||||||
AMNH 28641, symphysis; AMNH 28640, dentary m3 | ||||||||||
Mammalia
- Polydolopidae
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Eudolops tetragonus
Ameghino 1897
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Marshall 1982 | 1 specimen | ||||||||
AMNH 28435, a fragment of a right mandibular ramus with M2-3 complete | ||||||||||
see common names |
Geography
Country: | Argentina | State/province: | Chubut |
Coordinates: | 45.8° South, 69.0° West (view map) | ||
Paleocoordinates: | 48.1° South, 59.6° West | ||
Basis of coordinate: | estimated from map | ||
Geographic resolution: | outcrop |
Time
Period: | Paleogene | Epoch: | Eocene |
Stage: | Bartonian | 10 m.y. bin: | Cenozoic 3 |
Key time interval: | Bartonian | Zone: | Barrancan |
Age range of interval: | 41.30000 - 38.00000 m.y. ago |
Stratigraphy
Stratigraphic resolution: | group of beds | ||||
Stratigraphy comments: "Casamayoran" SALMA (now subdivided into the Vacan and Barrancan SALMAs, both of Middle Eocene age).
Barrancan SALMA according to Cifelli (1985). |
Lithology and environment
Primary lithology: | not reported |
Environment: | terrestrial indet. |
Taphonomy
Modes of preservation: | body |
Size of fossils: | macrofossils |
Collection methods and comments
Collection methods: | survey of museum collection | ||
Reason for describing collection: | taxonomic analysis | ||
Museum repositories: | AMNH | ||
Collectors: | Scarritt Expedition | Collection dates: | 1930 |
Metadata
Database number: | 175744 | ||
Authorizer: | R. Butler, J. Zijlstra | Enterer: | R. Butler, J. Zijlstra |
Modifier: | M. Kouvari | Research group: | vertebrate |
Created: | 2016-01-09 03:23:56 | Last modified: | 2020-09-22 03:14:18 |
Access level: | the public | Released: | 2016-01-09 03:23:56 |
Creative Commons license: | CC BY |
Reference information
Primary reference:
57836. | R. Cifelli. 1985. Biostratigraphy of the Casamayoran, Early Eocene of Patagonia. American Museum Novitates 2820:1-26 [J. Zijlstra/J. Zijlstra] |
Secondary references:
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] | |
10312 | G. G. Simpson. 1967. The beginning of the age of mammals in South America. Part II. Bulletin of the American Museum of Natural History 137:1-260 [D. Croft/D. Croft/K. Pino] |