Chorrillo Formation
Chorrillo Formation Stratigraphic range: Maastrichtian | |
---|---|
Type | Geological formation |
Underlies | Calafate Formation |
Overlies | La Irene Formation |
Thickness | >50 m (160 ft) |
Lithology | |
Primary | Claystone |
Location | |
Location | Patagonia |
Coordinates | 49°54′S 72°30′W / 49.9°S 72.5°WCoordinates: 49°54′S 72°30′W / 49.9°S 72.5°W |
Approximate paleocoordinates | 51°48′S 62°12′W / 51.8°S 62.2°W |
Region | Santa Cruz Province |
Country |
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Extent |
Southeast of Viedma Lake North of Argentino Lake Austral Basin |
Type section | |
Named by | Arbe & Hechem |
Year defined | 1984 |
The Chorrillo Formation, also named as Chorillo Formation,[1] is a Maastrichtian geologic formation in southern Patagonia, Argentina. Dinosaur remains are among the fossils that have been recovered from the formation, although none have yet been referred to a specific genus.[2] The formation is more than 50 metres (160 ft) thick and underlies the Calafate Formation and rests on top of the La Irene Formation.[3]
See also
References
- ↑ Río Leona at Fossilworks.org
- ↑ Weishampel, et al. (2004). "Dinosaur distribution." Pp. 517-607.
- ↑ Marenssi et al., 2003, p.406
Bibliography
- Marenssi, Sergio A.; Silvio Casadío, and Sergio N. Santillana. 2003. Estratigrafía y sedimentología de las unidades del Cretácico superior-Paleógeno aflorantes en la margen sureste del lago Viedma, provincia de Santa Cruz, Argentina. Revista de la Asociación Geológica Argentina 58. 403–416. Accessed 2018-08-30.
- Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. 861 pp. ISBN 0-520-24209-2.
Further reading
- J. E. Powell. 2003. Revision of South American titanosaurid dinosaurs: palaeobiological, palaeobiogeographical and phylogenetic aspects. Records of the Queen Victoria Museum Launceston 111:1-173
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