Duke Locality 79 (La Venta Fauna) (Miocene of Colombia)

Where: Colombia (3.3° N, 75.1° W: paleocoordinates 2.7° N, 72.6° W)

• coordinate estimated from map

• small collection-level geographic resolution

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

• 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).

• formation-level stratigraphic resolution

Environment/lithology: fluvial; sandstone and mudstone

• The La Victoria Formation is composed of channel and overbank deposits
• The La Victoria Formation has "coarse- to fine-grained pebbly lithic arenites with important amounts of volcanic fragments and plagioclase alternating vertically and laterally with reddish-brown and greenish-gray mudstone. The mudstones are very rich in fossil vertebrates"

Size class: macrofossils

Collection methods: Several isolated scutes

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 13739: authorized by John Alroy, entered by Jill Wertheim on 23.04.2002, edited by Roger Benson, Maria Vallejo, Philip Mannion and Laura Mora-Rojas

Creative Commons license: CC BY (attribution)

Taxonomic list

Mammalia
 Cingulata - Dasypodidae
Pedrolypeutes praecursor Carlini et al. 1997 armadillo
  - Mylodontidae
Neonematherium flabellatum3 Ameghino 1904 edentate
IGM 184668, 184689, 184690, 184050
 Panameriungulata - Proterotheriidae
Villarroelia totoyoi1 Cifelli and Guerrero Diaz 1997 placental
 Primates - Pitheciidae
cf. Nuciruptor sp.4 Meldrum and Kay 1997 monkey
Specimen nÂș IGM 184667
Reptilia
 Squamata - Teiidae
"Paradracaena colombiana" = Dracaena colombiana5
"Paradracaena colombiana" = Dracaena colombiana5 Estes 1961 caiman lizard
IGM 184671 (partial left maxilla)
 Crocodylia - Gavialidae
Gryposuchus colombianus2 Langston 1965 crocodilian
IGM 184696 (almost complete skull and articulated mandible, atlas-axis complex, incomplete thoracic vertebra, proximal ends of the left scapula and coracoid, and rib fragments of one individual) and IGM 184057 (incomplete skulll and articulated mandible)