Gran Barranca faunule 17: Tinguirirican, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Notoungulata
Simpson 1967 1 specimen
AMNH 29474, dentary i3-m3.
Mammalia - Notoungulata - Isotemnidae
see common names

Geography
Country:Argentina State/province:Chubut
Coordinates: 45.7° South, 68.7° West (view map)
Paleocoordinates:45.8° South, 62.4° West (Wright 2013)
Basis of coordinate:estimated from map
Geographic resolution:small collection
Time
Period: Paleogene
10 m.y. bin: Cenozoic 3-4
Key time interval: Tinguirirican Mammal zone:  Tinguirirican
Age range of interval: 36 - 29 m.y. ago
Stratigraphy
Formation:Sarmiento Member:Vera
Stratigraphic resolution:bed
Stratigraphy comments: Tinguirirican SALMA, latest Eocene/early Oligocene (Madden et al. 2010).

High in Gran Barranca section V of Cifelli (1985), in "irreg. bedded pnk. tuff, limonite and Mn concretions, conglomerate of tuff pebbles in lower part"
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Collection methods:survey of museum collection
Reason for describing collection:biostratigraphic analysis
Metadata
Database number:176196
Authorizer:J. Zijlstra Enterer:J. Zijlstra
Modifier:M. Kouvari Research group:vertebrate
Created:2016-01-30 20:38:25 Last modified:2025-02-22 15:12:02
Access level:the public Released:2016-01-30 20:38:25
Creative Commons license:CC0
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:

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]