Mid-Cretaceous turnover of saurischian dinosaur communities: evidence from the Neuquén Basin
Published:January 01, 2005
Rodolfo A. Coria, Leonardo Salgado, 2005. "Mid-Cretaceous turnover of saurischian dinosaur communities: evidence from the Neuquén Basin", The Neuquén Basin, Argentina: A Case Study in Sequence Stratigraphy and Basin Dynamics, G. D. Veiga, L. A. Spalletti, J. A. Howell, E. Schwarz
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Successional changes are recorded among saurischian dinosaur faunas throughout the Cretaceous of the Neuquén Basin. Both sauropod and theropod lineages present in NW Patagonia show comparable transformations and indicate that some clades did not survive the Late Turonian boundary. Similar patterns of changes are observed in other Patagonian sedimentary basins. Diplodocoid sauropods and carcharodontosaurid theropods are not yet recorded in levels younger than Turonian, while titanosaurians and abelisauroids are present before and after this period. Important floral changes during the mid-Cretaceous, mainly related to the proliferation of angiosperms, could be one element that influenced some dinosaurian associations.
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The Neuquén Basin, Argentina: A Case Study in Sequence Stratigraphy and Basin Dynamics
The Neuquén Basin of northern Patagonia provides an excellent case study in basin analysis and sequence stratigraphy. The basin is one of the largest petroleum provinces in South America and includes a dramatic record of relative sea-level changes as well as a unique and globally important palaeontological record. Understanding this region is also central to unravelling the history of the Andes. The latest developments in the study of the area have been combined in this volume to give an integrated series of case studies that document the structural, igneous, sedimentological and palaeontological history of the region from the Triassic to the Recent. This publication provides an introduction into this fascinating region as well as a resource that includes the most complete and up-to-date studies of the area.