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- Title
Tithonian age of dinosaur fossils in central Patagonian, Chile: U-Pb SHRIMP geochronology.
- Authors
Suárez, Manuel; Cruz, Rita; Fanning, Mark; Novas, Fernando; Salgado, Leonardo
- Abstract
Three Tithonian concordant U-Pb SHRIMP zircon ages of 148.7 ± 1.4, 147.9 ± 1.5 and 147.0 ± 1.0 from tuffs intercalated in a clastic sedimentary succession with exceptional dinosaur bones including the new taxon Chilesaurus diegosuarezi gen. et sp. nov. exposed in central Chilean Patagonia (ca. 46°30′S) are reported herein. The fossiliferous beds accumulated in a synvolcanic fan delta reaching a shallow marine basin as indicated by glauconite present in some of the beds, and coeval with the beginning of the transgression of the Aysén Basin.
- Subjects
DINOSAURS; GEOLOGICAL time scales; URANIUM-lead dating; TITHONIAN Stage; MARINE transgression; ZIRCON; FOSSILS
- Publication
International Journal of Earth Sciences, 2016, Vol 105, Issue 8, p2273
- ISSN
1437-3254
- Publication type
Article
- DOI
10.1007/s00531-015-1287-7