Los Colorados Formation
Los Colorados Formation Stratigraphic range: Upper Triassic | |
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Type | Geological formation |
The Los Colorados Formation is a sedimentary rock formation found in La Rioja, Argentina. It has a Norian age (Upper Triassic), and is notable for its fossils of early dinosaurs, including the coelophysoid Zupaysaurus and the "prosauropods" Coloradisaurus, Lessemsaurus, and Riojasaurus.[1] Magnetostratigraphic analysis suggests that the Los Colorados Formation was deposited between 227 and 213 million years ago.[2]
Fauna
Dinosaurs
Indeterminate theropod remains present in the Provincia de la Rioja.[1]
Dinosaurs of the Los Colorados Formation | ||||
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Taxa | Presence | Notes | Images | |
Genus:
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"Skull, adult."[3] |
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Genus:
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"Partial cervical, dorsal, and sacral vertebrae, adult."[3] | ||
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See also
References
- 1 2 3 4 5 6 7 8 9 10 11 12 Weishampel, David B; et al (2004). "Dinosaur distribution (Late Triassic, South America)." In: Weishampel, David B.; Dodson, Peter; and Osmólska, Halszka (eds.): The Dinosauria, 2nd, Berkeley: University of California Press. Pp. 527–528. ISBN 0-520-24209-2.
- ↑ Dennis V. Kent, Paula Santi Malnis, Carina E. Colombi, Oscar A. Alcober, and Ricardo N. Martínez (2014) Age constraints on the dispersal of dinosaurs in the Late Triassic from magnetochronology of the Los Colorados Formation (Argentina). Proceedings of the National Academy of Sciences (advance online publication) doi: 10.1073/pnas.1402369111
- 1 2 "Table 12.1," in Weishampel, et al. (2004). Page 234.
- ↑ "Table 12.1," in Weishampel, et al. (2004). Page 237.
Coordinates: 29°48′00″S 67°54′00″W / 29.8000°S 67.9000°W
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