Yecua, Santa Cruz: Serravallian - Tortonian, Bolivia

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Panameriungulata - Macraucheniidae
cf. Theosodon sp. Ameghino 1887
see common names

Geography
Country:Bolivia State/province:Santa Cruz
Coordinates: 17.8° South, 63.2° West (view map)
Paleocoordinates:17.3° South, 60.9° West (Wright 2013)
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period: Neogene Epoch: Miocene
Stage: Serravallian - Tortonian 10 m.y. bin: Cenozoic 5 - Cenozoic 6
Key time interval: Serravallian - Tortonian
Age range of interval: 13.82 - 7.246 m.y. ago
Age estimate: 12.4 to 7.17 Ma (U/Pb)
Stratigraphy
Formation:Yecua
Stratigraphic resolution:formation
Stratigraphy comments: This collection had a M. Miocene age assigned. But from more recent papers: The Yecua formation is estimated to be 12.4–8/7.17Ma old on the basis of U-Pb chronologic dates (Uba et al., 2007; 2009).
Lithology and environment
Primary lithology: not reported
Environment:terrestrial indet.
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils,mesofossils
Collection methods and comments
Reason for describing collection:general faunal/floral analysis
Metadata
Database number:68623
Authorizer:D. Croft Enterer:D. Weinstein
Modifier:M. Kouvari Research group:vertebrate
Created:2007-01-31 11:31:38 Last modified:2025-02-22 15:12:02
Access level:the public Released:2007-01-31 11:31:38
Creative Commons license:CC0
Reference information

Primary reference:
19694. L. G. Marshall and T. Sempere. 1991. The Eocene to Pleistocene vertebrates of Bolivia and their stratigraphic context: a review. In R. Suárez-Soruco (ed.), Fósiles y Facies de Bolivia - Vol. 1 Vertebrados (Revista Ténica de YPFB) 12(3-4):631-652 [D. Croft/D. Weinstein/S. Bruning]