Mulichinco Formation
The Mulichinco Formation is a geological formation in Argentina. It is Valanginian in age and is predominantly terrestrial, being deposited at a time of marine regression in the Neuquén Basin, and predominantly consists of siliciclastic rocks.[1]
| Mulichinco Formation Stratigraphic range: Valanginian ~140–136 Ma | |
|---|---|
 Mulichinco Formation at Puerta Curaco | |
| Type | Geological formation |
| Unit of | Mendoza Group |
| Underlies | Agrio Formation |
| Overlies | Vaca Muerta |
| Thickness | 200–400 metres (660–1,310 ft) |
| Lithology | |
| Primary | Mudstone, siltstone, sandstone |
| Other | Limestone |
| Location | |
| Coordinates | 38.5°S 70.2°W |
| Approximate paleocoordinates | 37.8°S 33.5°W |
| Region | Neuquén Province |
| Country |  Argentina |
| Extent | Neuquén Basin |
  Mulichinco Formation (Argentina) | |
Fossil content
Dinosaur remains have been found in the formation, including those of the dicraeosaurid Pilmatueia[2] and carcharodontosaurid Lajasvenator.[3]
References
- Schwarz et al., 2005
- Coria et al., 2018
- Coria et al., 2019
Bibliography
- Coria, Rodolfo A.; Philip J. Currie; Francisco Ortega, and Mattia A. Baiano. 2019. An Early Cretaceous, medium-sized carcharodontosaurid theropod (Dinosauria, Saurischia) from the Mulichinco Formation (upper Valanginian), Neuquén Province, Patagonia, Argentina. Cretaceous Research 111. 104319. doi:10.1016/j.cretres.2019.104319
- Coria, Rodolfo A.; Guillermo J. Windholz; Francisco Ortega, and Philip J. Currie. 2018. A new dicraeosaurid sauropod from the Lower Cretaceous (Mulichinco Formation, Valanginian, Neuquén Basin) of Argentina. Cretaceous Research 93. 33–48. doi:10.1016/j.cretres.2018.08.019
- Gnaedinger, S.; R. A. Coria; E. Koppelhus; S. Casadío; M. Tunik, and P. Currie. 2017. First Lower Cretaceous record of Podocarpaceae wood associated with dinosaur remains from Patagonia, Neuquén Province, Argentina. Cretaceous Research 78. 228-239.
- Schwarz, Ernesto, and John A. Howell. 2005. Sedimentary evolution and depositional architecture of a lowstand sequence set: the Lower Cretaceous Mulichinco Formation, Neuquén Basin, Argentina. Geological Society, London, Special Publications 252. 109–138. doi:10.1144/GSL.SP.2005.252.01.06Bibcode:2005GSLSP.252..109SISSN 0305-8719
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