3.5 km N and 3? W of El Picache on up side of Chiguaje Fault: Late/Upper Miocene, Venezuela
List of taxa
Where & when
Geology
Taphonomy & methods
Metadata & references
Taxonomic list
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Reptilia
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Mourasuchus sp.
Price 1964
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| MCNC-URU-110-72V | ||||||||||
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Purussaurus sp.
Barbosa Rodrigues 1892
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| MCNC-URU-111-72V | ||||||||||
| see common names | ||||||||||
Geography
| Country: | Venezuela | State/province: | Falcon |
| Coordinates: | 11.2° North, 70.2° 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 |
| Stratigraphic resolution: | bed |
Lithology and environment
| Primary lithology: | brown,gray claystone |
| Secondary lithology: | sandstone |
| Includes fossils? | Y |
| Lithology description: The middle member of the Urumaco Formation consists of claystone and sand. The gray claystone is microfossiliferous, and the brown claystone contains vertebrate remains such as reptiles, mammals, marine and freshwater fish, and also coprolites and wood (Díaz de Gamero & Linares, 1989). The limestone changes from conchiferous sandstones to consolidated coquina limestone. In the lower half of this middle member, an abundant and diverse marine mollusk fauna exists in a sandy matrix. This matrix also contains elasmobranch teeth and teleostean otoliths. | |
| Environment: | fluvial-deltaic indet. |
| Geology comments: The paleoenvironments are interpreted as inner sub-littoral and coastal lagoon enviroments with riverine and estuarine influence (Díaz de Gamero, 1996). | |
Taphonomy
| Modes of preservation: | body |
| Size of fossils: | macrofossils |
Collection methods and comments
| Reason for describing collection: | taxonomic analysis |
Metadata
| Also known as: | Urumaco | ||
| Database number: | 183008 | ||
| Authorizer: | P. Mannion | Enterer: | P. Mannion | Research group: | vertebrate |
| Created: | 2016-11-30 04:32:31 | Last modified: | 2016-11-30 04:32:31 |
| Access level: | the public | Released: | 2016-11-30 04:32:31 |
| Creative Commons license: | CC BY | ||
Reference information
Primary reference:
| 61076. | T. M. Scheyer and M. Delfino. 2016. The late Miocene caimanine fauna (Crocodylia: Alligatoroidea) of the Urumaco Formation, Venezuela. Palaeontologia Electronica 19(3):48A:1-57 [P. Mannion/P. Mannion] |