Earth:Mulichinco Formation
From HandWiki
Short description: Geological formation in Argentina
| 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°30′S 70°12′W / 38.5°S 70.2°W |
| Paleocoordinates | [ ⚑ ] 37°48′S 33°30′W / 37.8°S 33.5°W |
| Region | Neuquén Province |
| Country | Argentina |
| Extent | Neuquén Basin |
  Mulichinco Formation (Argentina) | |
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]
Fossil content
Dinosaur remains have been found in the formation, including those of the dicraeosaurid Pilmatueia[2] and carcharodontosaurid Lajasvenator.[3] Flora recovered from the formation includes the tree fern Tempskya dernbachii and horsetail Equisetites.[4]
References
- ↑ Schwarz et al., 2005
- ↑ Coria et al., 2018
- ↑ Coria et al., 2019
- ↑ Martínez, Leandro C.A.; Olivo, Mariana S. (August 2015). "Tempskya in the Valanginian of South America (Mulichinco Formation, Neuquén Basin, Argentina) — Systematics, palaeoclimatology and palaeoecology" (in en). Review of Palaeobotany and Palynology 219: 116–131. doi:10.1016/j.revpalbo.2015.04.002. https://linkinghub.elsevier.com/retrieve/pii/S003466671500069X.
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
 |  |
