La Estrella: Colhuehuapian, Argentina
collected 2016

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Sparassodonta
Sparassodonta indet. (Ameghino 1894)
Mammalia - Paucituberculata
Paucituberculata indet. Ameghino 1894
Mammalia - Notoungulata - Interatheriidae
Interatheriidae indet. (Ameghino 1887)
Mammalia - Notoungulata - Hegetotheriidae
Hegetotheriidae indet. Ameghino 1894
Mammalia - Primates - Homunculidae
Mazzonicebus almendrae Kay 2010
MPEF-PV 10970
Mammalia - Rodentia - Neoepiblemidae
Perimys sp. Ameghino 1887
Mammalia - Rodentia
Eosteiromys sp. Ameghino 1902
Banderomys leanzai Kramarz 2005
Busker et al. 2017
MPEF-PV 10966a-e
Mammalia - Cingulata - Glyptodontidae
Glyptodontidae indet. Burmeister 1879
Mammalia - Cingulata - Dasypodidae
Dasypodinae indet. Gray 1821
Insecta
Insecta indet. Linnaeus 1758
see common names

Geography
Country:Argentina State/province:Chubut County:Meseta del Canquel
Coordinates: 44.6° South, 69.1° West (view map)
Paleocoordinates:45.3° South, 63.2° West
Basis of coordinate:stated in text
Geographic resolution:small collection
Time
Period: Neogene Epoch: Miocene
10 m.y. bin: Cenozoic 5
Key time interval: Colhuehuapian
Age range of interval: 20.9 - 17.4 m.y. ago
Stratigraphy
Formation:Sarmiento Member:Colhue-Huapi
Stratigraphic resolution:group of beds
Stratigraphy comments: It consists of an isolated outcrop of the Sarmiento Formation.
The fossil-bearing bed is around 15 m below a flow basalt, herein correlated with the uppermost flow basalt recorded in the Scarritt Pocket section.
Relative age younger than Deseadan and not older than Colhuehuepian.
The authors correlate the La Estrella section with the lower Colhue-Huapi Member.
Lithology and environment
Primary lithology:massive,fine,gray,green,red,white unlithified sandy tuff
Includes fossils?Y
Lithology description: The section is 18 m thick and characterized by a monotonous succession of mostly massive, fine tuffs (Figure 2). The lowermost 6 m are pinkish gray in color, and contain floated medium size mammal remains. The upper part displays whitish and light greenish grey tuffs, and displays insect pupation chambers (Fictovichnus sp.) and small-sized mammal remains in place, including the material herein reported. This and other outcrops fill small depressions or directly lie above the basaltic plateau conforming the Meseta del Canquel, and are close to the classical vertebrate locality “Scarritt Pocket”, located at approximately 25 km to the east (Marshall, Cifelli, Drake, & Curtis, 1986) (Figure 1). The fossil-bearing bed is around 15 m below a flow basalt, herein correlated with the uppermost flow basalt recorded in the Scarritt Pocket section.
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Preservation of anatomical detail:medium
Fragmentation:frequent
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:MEF
Collection dates:2016
Metadata
Database number:197191
Authorizer:P. Mannion Enterer:M. Kouvari
Modifier:M. Kouvari
Created:2018-10-25 10:20:15 Last modified:2019-09-09 09:57:40
Access level:the public Released:2018-10-25 10:20:15
Creative Commons license:CC BY
Reference information

Primary reference:
67197. N. M. Novo, M. F. Tejedor, M. E. Pérez and J. M. Krause. 2017. New primate locality from the early Miocene of Patagonia, Argentina. American Journal of Physical Anthropology 164:861-867 [P. Mannion/M. Kouvari]

Secondary references:

70102 F. Busker, M. E. Pérez, J. M. Krause and M. G. Vucetich. 2017. First record of Banderomys leanzai Kramarz, 2005 (Rodentia, Caviomorpha) in Chubut Province, Patagonia (Argentina). Revista del Museo Argentino de Ciencias Naturales 19(2):121-129 [P. Mannion/M. Kouvari/P. Mannion]