Estero Campamento (Miocene of Chile)

Also known as Laguna del Laja

Where: Bío Bío, Chile (37.5° S, 71.2° W: paleocoordinates 38.4° S, 65.5° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Cura-Mallín Formation, Early/Lower Miocene (23.0 - 16.0 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; volcaniclastic, muddy sandstone and conglomerate

• 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

• Volcaniclastic sandstone, mudstone and granule conglomerate

•Ignimbrite

Size class: macrofossils

Collected in 2001-2005; reposited in the SGOPV

Primary reference: 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]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 140104: authorized by Carlos Jaramillo, entered by Juan Carrillo on 01.03.2013

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Notoungulata - Hegetotheriidae
Hegetotheriidae indet. Savage 1951 notoungulate
 Rodentia - Chinchillidae
Lagostominae indet. Wiegmann 1832 chinchilid
 Metatheria -
Sparassodonta indet. Ameghino 1894 metatherian