0.5 km west of Quebrada (Quebrado) Picacho: Late/Upper Miocene, Venezuela
collected by Dr Bryan Patterson with A. D. Lewis, R. C. Wood, D. C. Fisher, R. W. Repenning and M. F. Stanford 1972

List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
Mammalia - Megalonychidae
Pattersonocnus diazgameroi n. gen., n. sp. Rincón et al. 2019
Holotype: MCNC-82-72V, right femur.
see common names

Geography
Country:Venezuela State/province:Falcón
Coordinates: 11.2° North, 70.3° West (view map)
Paleocoordinates:10.9° North, 68.8° West
Basis of coordinate:based on nearby landmark
Geographic resolution:small collection
Time
Period:Neogene Epoch:Miocene
10 m.y. bin:Cenozoic 6
Key time interval:Late/Upper Miocene
Age range of interval:11.63000 - 5.33300 m.y. ago
Stratigraphy
Formation:Urumaco Member:Upper
Stratigraphic resolution:member
Stratigraphy comments: As mentioned in Patterson’s field notes of 1972, the fossils described here were collected from the upper member of the Urumaco Formation, which is usually considered as late Miocene in age (Linares 2004).
Lithology and environment
Primary lithology:fine,medium sandstone
Lithology description: The Urumaco Formation is part of a lithostratigraphical unit, around 2000 m thick, composed of a complex intercalation of medium- to fine-grained sandstones, organic-rich mudstone, coal, shale and thick-bedded coquinoidal limestone with abundant mollusc fragments (Linares 2004)
Environment:coastal indet.
Geology comments: Several geological studies indicate that deposition of the formation occurred along a complex of mar- ginal and near-coastal environments (Dıaz de Gamero &Linares 1989;Hambalek et al. 1994; Quiroz & Jaramillo 2010).
Taphonomy
Modes of preservation:body
Size of fossils:macrofossils
Collection methods and comments
Collection methods:field collection
Reason for describing collection:taxonomic analysis
Museum repositories:MCZ
Collectors:Dr Bryan Patterson with A. D. Lewis, R. C. Wood, D. C. Fisher, R. W. Repenning and M. F. Stanford Collection dates:1972
Collection method comments: The specimens collected by the Harvard University team, originally housed in the MCZ collection, were recently transferred to the Museo de Ciencias de Caracas (MCNC), Caracas, Venezuela.
Metadata
Also known as:50m east of the Chiguaje fault
Database number:198253
Authorizer:P. Mannion Enterer:M. Kouvari
Modifier:M. Kouvari Research group:vertebrate
Created:2018-12-12 03:22:55 Last modified:2018-12-12 03:29:10
Access level:the public Released:2018-12-12 03:22:55
Creative Commons license:CC BY
Reference information

Primary reference:
67533. A. D. Rincón, A. Solórzano, H. G. McDonald and M. Montellano-Ballesteros. 2019. Two new megalonychid sloths (Mammalia: Xenarthra) from the Urumaco Formation (late Miocene), and their phylogenetic affinities. Journal of Systematic Palaeontology 17(5):409-421 [P. Mannion/M. Kouvari/P. Mannion]