Quebrada La Venta; UCMP V4525 (Miocene of Colombia)

Also known as UCMP V4525; V-4525

Where: Huila, Colombia (3.2° N, 75.2° W: paleocoordinates 2.7° N, 72.6° W)

• coordinate based on nearby landmark

• small collection-level geographic resolution

When: Laventan mammal zone, Villavieja Formation (Honda Group), Laventan (13.8 - 11.0 Ma)

• The Honda Group is constrained by radiometric and paleomagnetic evidence to between approximately 13.5 Ma–11.8 Ma (Flynn et al., 1996; Guerrero, 1996; Madden et al., 1996).

• bed-level stratigraphic resolution

Environment/lithology: terrestrial; sandstone and claystone

• In thirty-foot thick unit of alternating sandstones and claystones between the "Yelow Sandstones" and the "Lower Red Bed" units

Size class: macrofossils

Reposited in the UCMP

Primary reference: M. McKenna. 1956. Survival of primitive Notoungulates and Condylarths into the Miocene of Colombia. American Journal of Science 254:736-743 [C. Jaramillo/M. Vallejo/A. Cardenas ]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 133692: authorized by Carlos Jaramillo, entered by Maria Vallejo on 25.09.2012, edited by Philip Mannion, Laura Mora-Rojas and Juan Carrillo

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Mammalia
 Rodentia - Dinomyidae
"Olenopsis aequatorialis" = Drytomomys aequatorialis2, Scleromys colombianus2
"Olenopsis aequatorialis" = Drytomomys aequatorialis2 Anthony 1922 caviomorph
Anthony 1922 UCMP N° 37928
Scleromys colombianus2 Fields 1957 caviomorph
UCMP 40755
 Panameriungulata - Proterotheriidae
Neodolodus colombianus1
Neodolodus colombianus1 Hoffstetter and Soria 1986 placental
Ameghino 1897 Specimen U.C. 42891
 Notoungulata - Leontiniidae
Huilatherium pluripicatum5
Huilatherium pluripicatum5 Villarroel and Guerrero Diaz 1985 notoungulate
UCMP 40278; UCMP 40042, UCMP 38052, UCMP 39961, UMP 40276, UCMP 39977
 Astrapotheria - Astrapotheriidae
Granastrapotherium snorki3
Granastrapotherium snorki3 Johnson and Madden 1997 placental
UCMP 40358
Reptilia
 Crocodylia - Alligatoridae
Alligatoridae indet.4
 Crocodylia - Gavialidae
cf. Rhamphostomopsis sp.4
cf. Rhamphostomopsis sp.4 Rusconi 1933 crocodilian
U.C.M.P. no. 40293 (left mandibular ramus)
1Cifelli and Guerrero 1989; 2Fields 1957; 3Johnson and Madden 1997; 4Langston 1965; 5Villarroel and Colwell Danis 1997