Cerro los Pinos: Langhian, Chile
collected 2001-2005

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Rodentia
Caviomorpha indet. (Wood and Patterson 1955)
Mammalia - Rodentia - Echimyidae
Heteropsomyinae (aff. Acarechimys) sp. Anthony 1917
Mammalia - Rodentia - Chinchillidae
Prolagostomus sp. Ameghino 1887
Mammalia - Rodentia - Dasyproctidae
Dasyproctidae (aff. Alloiomys) sp. Gray 1825
Mammalia - Cingulata - Dasypodidae
Dasypodidae indet. (Gray 1821)
Mammalia - Notoungulata
Typotheria indet. Zittel 1892
see common names

Geography
Country:Chile State/province:Bío Bío
Coordinates: 37.5° South, 71.2° West (view map)
Paleocoordinates:36.8° South, 68.5° West (Wright 2013)
Basis of coordinate:estimated from map
Altitude:1742 meters
Geographic resolution:local area
Time
Period: Neogene Epoch: Miocene
Stage: Langhian 10 m.y. bin: Cenozoic 5
Key time interval: Langhian
Age range of interval: 15.98 - 13.82 m.y. ago
Age estimate: 14.50 ± 0.50 Ma (Ar/Ar)
Stratigraphy
Formation:Cura-Mallín
Stratigraphic resolution:group of beds
Lithology and environment
Primary lithology:volcaniclastic sandy mudstone
Secondary lithology:"cross stratification",volcaniclastic conglomeratic sandstone
Includes fossils?Y
Includes fossils?Y
Lithology description: Volcaniclastic mudstone and sandstone Pebble conglomerate and trough cross-bedded volcaniclastic sandstone
Environment:fluvial-lacustrine indet.
Geology comments: Our analyses indicate that the exposed thickness of the Cura-Mallin Fm southeast of Laguna del Laja exceeds 1800 m, consisting of interbedded predominantly-fluviatile volcaniclastics with minor facies
possibly indicative of short-lived lacustrine phases
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:biostratigraphic analysis
Museum repositories:SGOPV
Collection dates:2001-2005
Metadata
Also known as:Laguna del Laja
Database number:140091
Authorizer:C. Jaramillo Enterer:J. Carrillo
Modifier:M. Kouvari Research group:vertebrate
Created:2013-03-01 10:14:41 Last modified:2025-02-22 15:12:02
Access level:database members Released:2014-03-01 10:14:41
Creative Commons license:CC0
Reference information

Primary reference:
45220. J. J. Flynn, R. Charrier, D. A. Croft, P.B. Gans, T. M. Herriott, J. A. Wertheim, and A. R. Wyss. 2008. Chronologic implications of new Miocene mammals from the Cura-Mallín and Trapa Trapa formations, Laguna del Laja area, south Central Chile. Journal of South American Earth Sciences 26:412-426 [C. Jaramillo/J. Carrillo]