Tithonian age of dinosaur fossils in central Patagonian, Chile: U–Pb SHRIMP geochronology

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• 作者：Manuel Suárez ; Rita De La Cruz ; Mark Fanning…
• 关键词：U–Pb ; Tithonian ; Dinosaurs ; Chilesaurus diegosuarezi gen. et sp. nov. ; Patagonia ; Chile
• 刊名：International Journal of Earth Sciences
• 出版年：2016
• 出版时间：November 2016
• 年：2016
• 卷：105
• 期：8
• 页码：2273-2284
• 全文大小：2,338 KB
• 刊物类别：Earth and Environmental Science
• 刊物主题：Earth sciences
  Geology
  Geophysics and Geodesy
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1437-3262
• 卷排序：105

文摘

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.