Segundas Barrancas Blancas (SBB) - from Estancia Cordon Alto to Ea el Tordillo: Santacrucian, Argentina
collected by C. Ameghino, Fernicola et al 2013-2014
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
|
Mammalia
- Notoungulata
- Interatheriidae
|
||||||||||
|
Protypotherium compressidens
Ameghino 1891
|
Fernández et al. 2023 | |||||||||
| MPM-PV 19761, MPM-PV 19781, MPM-PV 19782 | ||||||||||
|
Interatherium sp.
Ameghino 1887
|
||||||||||
|
Interatherium rodens
Moreno 1882
|
Fernández et al. 2023 | |||||||||
|
Interatherium extensus
Fernández et al. 2023
|
Fernández et al. 2023 | |||||||||
|
Mammalia
- Notoungulata
- Toxodontidae
|
||||||||||
|
Nesodon sp.
Owen 1846
|
||||||||||
|
Mammalia
- Mylodontidae
|
||||||||||
|
cf. Nematheriinae indet.
Mercerat 1891
|
Bargo et al. 2019 | |||||||||
| Nematheriinae? Planopinae? | ||||||||||
|
Mammalia
|
||||||||||
|
Megatherioidea indet.
Gray 1821
|
Bargo et al. 2019 | |||||||||
|
Mammalia
- Megalonychidae
|
||||||||||
|
Hapalops sp.
Ameghino 1887
|
||||||||||
|
cf. Hapalops sp.
Ameghino 1887
|
Bargo et al. 2019 | |||||||||
|
Mammalia
- Megatheriidae
|
||||||||||
|
Megatheriidae indet.
(Gray 1821)
|
Bargo et al. 2019 | |||||||||
|
Planopinae indet.
Ameghino 1887
|
Bargo et al. 2019 | |||||||||
|
Mammalia
- Cingulata
|
||||||||||
|
Peltephilus sp.
Ameghino 1887
|
Fernicola and Vizcaino 2019 | |||||||||
|
Peltephilus pumilus
Ameghino 1887
|
Fernicola and Vizcaino 2019 | |||||||||
|
Mammalia
- Cingulata
- Chlamyphoridae
|
||||||||||
|
Proeutatus sp.
Ameghino 1891
|
||||||||||
|
Proeutatus oenophorus
(Ameghino 1887)
|
Fernicola and Vizcaino 2019 | |||||||||
|
Prozaedyus sp.
(Ameghino 1891)
|
||||||||||
|
Prozaedyus proximus
(Ameghino 1887)
|
Fernicola and Vizcaino 2019 | |||||||||
|
Stenotatus sp.
Ameghino 1891
|
||||||||||
|
Stenotatus patagonicus
(Ameghino 1887)
|
Fernicola and Vizcaino 2019 | |||||||||
|
Mammalia
- Cingulata
- Propalaehoplophoridae
|
||||||||||
|
Propalaehoplophoridae indet.
Ameghino 1891
|
Fernicola and Vizcaino 2019 | |||||||||
|
Cochlops sp.
Ameghino 1889
|
||||||||||
|
Eucinepeltus sp.
(Ameghino 1891)
|
Fernicola and Vizcaino 2019 | |||||||||
|
Mammalia
- Rodentia
|
||||||||||
|
Neoreomys sp.
Ameghino 1887
|
||||||||||
|
Mammalia
- Rodentia
- Neoepiblemidae
|
||||||||||
|
Perimys sp.
Ameghino 1887
|
||||||||||
| see common names | ||||||||||
Geography
| Country: | Argentina | State/province: | Santa Cruz |
| Coordinates: | 50.3° South, 70.4° West (view map) | ||
| Paleocoordinates: | 50.9° South, 64.8° West | ||
| Basis of coordinate: | stated in text | ||
| Geographic resolution: | outcrop |
Time
| Period: | Neogene | Epoch: | Miocene |
| Stage: | Burdigalian | 10 m.y. bin: | Cenozoic 5 |
| Key time interval: | Santacrucian | ||
| Age range of interval: | 17.4 - 16.2 m.y. ago | ||
| Age estimate: | 16.47 to 15.3 Ma (Ar/Ar) |
Stratigraphy
| Formation: | Santa Cruz | ||||
| Stratigraphic resolution: | formation | ||||
| Stratigraphy comments: Arnal et al 2019: Segundas Barrancas Blancas (SBB; 16.47–15.3 Ma), with three sites, Estancia Cordón Alto1 (ECA), Estancia Cordón Alto2 (ECA2), and Estancia el Tordillo (EET); | |||||
Lithology and environment
| Primary lithology: | not reported |
| Lithology description: "90 m of horizontal strata of tabular geometry, composed of greenish and yellow siltstones and tabular to lenticular beds of gray sandstones" | |
| Environment: | terrestrial indet. |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | mesofossils |
Collection methods and comments
| Reason for describing collection: | paleoecologic analysis | ||
| Collectors: | C. Ameghino, Fernicola et al | Collection dates: | 2013-2014 |
| Collection method comments: Recent fieldwork carried out between 2013 and 2014 by joint expeditions of the MLP, MACN, and Duke University | |||
Metadata
| Database number: | 176623 | ||
| Authorizer: | J. Zijlstra, P. Mannion, J. Carrillo | Enterer: | J. Zijlstra, M. Kouvari, K. Pino |
| Modifier: | M. Kouvari | Research group: | vertebrate |
| Subset of collection #: | 176593 | ||
| Created: | 2016-02-18 23:05:13 | Last modified: | 2020-06-22 08:56:01 |
| Access level: | the public | Released: | 2016-02-18 23:05:13 |
| Creative Commons license: | CC BY |
Reference information
Primary reference:
| 58194. | J. C. Fernicola, J. I. Cuitiño, S. F. Vizcaíno, M. S. Bargo, and R. F. Kay. 2014. Fossil localities of the Santa Cruz Formation (Early Miocene, Patagonia, Argentina) prospected by Carlos Ameghino in 1887 revisited and the location of the Notohippidian. Journal of South American Earth Sciences 52:94-107 [J. Zijlstra/J. Zijlstra/J. Zijlstra] |
Secondary references:
| 72831 | M. S. Bargo, G. De Iuliis, and N. Toledo. 2019. Early Miocene Sloths (Xenarthra, Folivora) From the Río Santa Cruz Valley (Southern Patagonia, Argentina), Ameghino, 1887 Revisited. In J. C. Fernicola, M. S. Bargo, S. F. Vizcaíno, R. F. Kay (eds.), Early–Middle Miocene Paleontology in the Río Santa Cruz, Southern Patagonia, Argentina. 130 years since Ameghino, 1887 19(2):102-137 [P. Mannion/M. Kouvari] | |
| 84949 | M. Fernández, J. C. Fernicola, and E. Cerdeño. 2023. Systematic Revision of Interatherium and Icochilus (Interatheriidae, Notoungulata) from the Santa Cruz Formation (Early To Middle Miocene), Santa Cruz Province, Argentina. Ameghiniana 60(3):236-258 [J. Carrillo/K. Pino] | |
| 85306 | M. Fernández, J. C. Fernicola, and E. Cerdeño. 2023. Systematic revision of the species of Protypotherium (Notoungulata: Interatheriidae) from the Santa Cruz Formation (Early–Middle Miocene), Argentinian Patagonia: a new phylogenetic hypothesis for the Interatheriidae. Zoological Journal of the Linnean Society zlad043:1-28 [J. Carrillo/K. Pino] | |
| 72833 | J. C. Fernicola and S. F. Vizcaino. 2019. Cingulates (Mammalia, Xenarthra) of the Santa Cruz Formation (Early-Middle Miocene) From the Río Santa Cruz, Argentine Patagonia. In J. C. Fernicola, M. S. Bargo, S. F. Vizcaíno, R. F. Kay (eds.), Early–Middle Miocene Paleontology in the Río Santa Cruz, Southern Patagonia, Argentina. 130 years since Ameghino, 1887 19(2):85-101 [P. Mannion/M. Kouvari] |