The oldest stratigraphic record of the Late Cretaceous shark Ptychodus mortoni Agassiz, from Vallecillo, Nuevo León, northeastern Mexico

The oldest stratigraphic record of the Late Cretaceous shark Ptychodus mortoni Agassiz, from Vallecillo, Nuevo León, northeastern Mexico

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The comments by Stinnesbeck et al. (2007) to our manuscript (Blanco-Piñón et al., 2007) refer to four main points: • Stinnebeck et al. (2007) question the validity of the FCT acronym that we used for our description of the specimen of Ptychodus mortoni Agassiz, 1843. The acronym used for this speci...

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Bibliographic Details
Main Authors: Alberto Blanco-Piñón, Luis M. Garibay-Romero
Format: Article
Language:English
Published: Universidad Nacional Autónoma de México 2018-01-01
Series:Revista Mexicana de Ciencias Geológicas
Online Access:https://rmcg.unam.mx/index.php/rmcg/article/view/666
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