Duke Locality 75 (La Venta Fauna) (Miocene of Colombia)

Where: Colombia (3.3° N, 75.2° W: paleocoordinates 2.5° N, 72.0° W)

• coordinate estimated from map

• local area-level geographic resolution

When: Cerro Colorado Member (Villavieja Formation), Friasian (16.3 - 15.5 Ma)

• group of beds-level stratigraphic resolution

Environment/lithology: fluvial; red, silty claystone and sandstone

• A change in sedimentation direction indicates that the Eastern Cordillera was already uplifted and was eroding to form the Cerro Colorado Member
• "prediminantly red claystone and siltstone. A few sandstone horizons 4-6 m thick composed of several stacked sandstone bodies, are present toward the top"

Size class: macrofossils

Collection methods: "numerous isolated scutes and miscellaneous postcranial bones"

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 13741: authorized by John Alroy, entered by Jill Wertheim on 23.04.2002, edited by Laura Mora-Rojas

Creative Commons license: CC BY (attribution)

Taxonomic list

Aves
 Opisthocomiformes - Opisthocomidae
Hoazinoides magdalenae3 Miller 1953 bird
Specimen n° 184249
Reptilia
 Squamata - Aniliidae
Colombophis portai2 Hoffstetter and Rage 1977 pipe snake
Specimen n° IGM 183988
Mammalia
 Rodentia - Dasyproctidae
Microscleromys sp.4 Walton 1990 caviomorph
IGM-DU 88-765
 Xenarthra - Glyptodontidae
Neoglyptatelus originalis Carlini et al. 1997 glyptodon
 Sparassodonta - Thylacosmilidae
Anachlysictis gracilis1 Goin 1997 metatherian
Specimen N° IGM 184247