Tacuarembó Formation
The Tacuarembó Formation is a Late Jurassic (Kimmeridgian) geologic formation of the eponymous department in northern Uruguay. The fluvial to lacustrine sandstones, siltstones and mudstones preserve ichnofossils, turtles, crocodylomorphs, fish and invertebrates (bivalves and gastropods).
| Tacuarembó Formation Stratigraphic range: Kimmeridgian ~155–151 Ma | |
|---|---|
| Type | Geological formation |
| Sub-units | Batoví Member |
| Overlies | Buena Vista Formation |
| Lithology | |
| Primary | Sandstone |
| Other | Siltstone, mudstone |
| Location | |
| Coordinates | 31.7°S 56.0°W |
| Approximate paleocoordinates | 40.2°S 15.7°W |
| Region | Tacuarembó Department |
| Country |  Uruguay |
| Extent | Norte Basin |
| Type section | |
| Named for | Tacuarembó |
  Tacuarembó Formation (Uruguay) | |
Fossil content
The following fossils have been reported from the formation:[1]
- Fish
- Arganodus tiguidiensis[7]
- Asiatoceratodus cf. tiguidiensis[7]
- Neoceratodus africanus[6]
- Priohybodus arambourgi[9]
- Halecostomi indet.[7]
- Semionotiformes indet.[6]
References
- Tacuarembó Formation at Fossilworks.org
- Fortier et al., 2011
- Perea et al., 2014
- Soto & Perea, 2008
- Soto, Matías; Toriño, Pablo; Perea, Daniel (2020-11-01). "Ceratosaurus (Theropoda, Ceratosauria) teeth from the Tacuarembó Formation (Late Jurassic, Uruguay)". Journal of South American Earth Sciences. 103: 102781. doi:10.1016/j.jsames.2020.102781. ISSN 0895-9811.
- Perea et al., 2003
- Soto & Perea, 2010
- Soto, Matías; Toriño, Pablo; Perea, Daniel (2020-03-01). "A large sized megalosaurid (Theropoda, Tetanurae) from the late Jurassic of Uruguay and Tanzania". Journal of South American Earth Sciences. 98: 102458. doi:10.1016/j.jsames.2019.102458. ISSN 0895-9811.
- Soto et al., 2012
- Mesa & Perea, 2015
Bibliography
- Mesa, V., and D. Perea. 2015. First record of theropod and ornithopod tracks and detailed description of sauropod trackways from the Tacuarembó Formation (Late Jurassic–?Early Cretaceous) of Uruguay. Ichnos 22. 109-121.
- Perea, D.; M. Soto; J. Sterli; V. Mesa; P. Torino; G. Roland, and J. Da Silva. 2014. Tacuarembemys kusterae, gen. et sp. nov., a new Late Jurassic-?earliest Cretaceous continental turtle from western Gondwana. Journal of Vertebrate Paleontology 34. 1329-1341.
- Soto, M.; D. Perea, and P. Torino. 2012. New remains of Priohybodus aramourgi (Hybodontiformes: Hybodontidae) from Late Jurassic-earliest Cretaceous deposits in Uruguay. Cretaceous Research 35. 118-123.
- Fortier, D.; D. Perea, and C. Schultz. 2011. Redescription and phylogenetic relationships of Meridiosaurus vallisparadisi, a pholidosaurid from the Late Jurassic of Uruguay. Zoological Journal of the Linnean Society 163. S257-S272.
- Soto, M., and D. Perea. 2010. Late Jurassic lungfishes (Dipnoi) from Uruguay, with comments on the systematics of Gondwanan ceradontiforms. Journal of Vertebrate Paleontology 30. 1049-1058.
- Soto, M., and D. Perea. 2008. A ceratosaurid (Dinosauria, Theropoda) from the Late Jurassic–Early Cretaceous of Uruguay. Journal of Vertebrate Paleontology 28. 439-444.
- Perea, D.; M. Ubilla, and A. Rojas. 2003. First report of theropods from the Tacuarembó Formation (Late Jurassic–Early Cretaceous), Uruguay. Alcheringa 27. 79-83.
- Perea, D.; M. Ubilla; A. Rojas, and C.A. Goso. 2001. The West Gondwanan occurrence of the hybodontid shark Priohybodus, and the Late Jurassic–Early Cretaceous age of the Tacuarembó Formation, Uruguay. Palaeontology 44. 1227-1235.
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