Duke Locality 70 (La Venta Fauna) (Miocene of Colombia)

Also known as IGM 183912

Where: Huila, Colombia (3.3° N, 75.2° W: paleocoordinates 2.7° N, 72.6° W)

• coordinate estimated from map

• local area-level geographic resolution

When: La Victoria Formation (Honda Group), Laventan (13.8 - 11.0 Ma)

• "...A level between the Chunchullo Sandstone Beds and the Tatacoa Sandstone Beds..."

•Note: This collection had a Friasian age but this must be the Friasian sensu lato, that includes the Friasian sensu stricto, Mayoan and Laventan. La Victoria formation is now considered of Laventan age (Flynn et al., 1997).

• bed-level stratigraphic resolution

Environment/lithology: fluvial; sandstone and mudstone

• "The deposition of the La Victoria Formation was initiated during active uplift and volcanism...the river deposits of the La Victoria Formation on the modern Magdalena River valley were apparently continuous to the east..."
• "very fine sandstone and mudstone alternating with minor 1- to 2-m medium-grained sandstones"

Size class: macrofossils

Preservation: coprolite

Collection methods: Includes numerous isolated dorsal carapace scutes, one from caudal tube

Primary reference: A. A. Carlini, S. F. Vizcaino, and G. J. Scillato-Yane. 1997. Armored Xenarthrans: A unique taxonomic and ecologic assemblage. Vertebrate Paleontology in the Neotropics; The Miocene Fauna of La Venta, Colombia (R. F. Kay, R. H. Madden, R. L. Cifelli, and J. J. Flynn, eds.; Smithsonian Institution Press, Washington) [J. Alroy/J. Wertheim/L. Mora-Rojas]more details

Purpose of describing collection: taxonomic analysis

PaleoDB collection 13650: authorized by John Alroy, entered by Jill Wertheim on 16.04.2002, edited by Laura Mora-Rojas

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
  - Mylodontidae
Neonematherium flabellatum Ameghino 1904 edentate
Specimen n° IGM 183922
 Megatherioidea - Megalonychidae
Megalonychidae indet. Gervais 1855 edentate
Specimen n° IGM 183905
 Cingulata - Dasypodidae
Nanoastegotherium prostatum n. gen. n. sp. Carlini et al. 1997 armadillo