Gran Barranca faunule 16: Tinguirirican, Argentina

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Notoungulata
1 specimen
AMH 29405, holotype, maxilla P2-M2 (see Simpson, 1967:185, ref. 10312).
1 specimen
Specimen is probably AMNH 29462, maxilla fragment with M2-3, discussed by Simpson (1967:184-185, ref. 10312).
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), near top of "massive, impure, faintly beaded tuff with Mn, especially 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:176195
Authorizer:J. Zijlstra Enterer:J. Zijlstra
Modifier:M. Kouvari Research group:vertebrate
Created:2016-01-30 20:37:40 Last modified:2025-02-22 15:12:02
Access level:the public Released:2016-01-30 20:37:40
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]