Quepuca river (Miocene of Chile)

Also known as Río Quepuca

Where: Biobio, Chile (38.0° S, 71.4° W: paleocoordinates 38.8° S, 66.0° W)

• coordinate stated in text

• outcrop-level geographic resolution

When: Guepitrio Member (Cura-Mallin Formation), Colhuehuapian (21.0 - 17.5 Ma)

• This collection had an E. Miocene age and a Santacrucian mammal age. But Solarzano et al., 2019: E. Miocene, probably Colhuehuapian?

• bed-level stratigraphic resolution

Environment/lithology: fluvial-lacustrine; volcaniclastic sandstone and shale

• The black shale and crossbedded sandstone association is interpreted as having been deposited in a meandering river system, adjacent to an active volcano(es).
• Dark gray massive shales, occasionally laminated; with medium grained sands grains and slickenside planes common.

Size class: macrofossils

Collected in 24th 1989; reposited in the SGOPV

Collection methods: surface (float), surface (in situ),

Primary reference: L. G. Marshall, P. Salinas, and M. Suarez. 1990. Astrapotherium sp. (Mammalia, Astrapotheriidae) from Miocene strata along the Quepuca river, Central Chile. Revista Geologica de Chile 17(2):215-223 [C. Jaramillo/J. Carrillo]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 139577: authorized by Carlos Jaramillo, entered by Juan Carrillo on 14.02.2013, edited by Grace Varnham

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Astrapotheria - Astrapotheriidae
Parastrapotherium sp., Astrapotherium indet.
Parastrapotherium sp. Ameghino 1895 placental
SGO. PV.4003
Astrapotherium indet. Burmeister 1879 placental