Taphonomic and paleoecological alteration mechanisms of the fossiliferous deposit of the Agua Nueva Formation, in Vallecillo, Nuevo León
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Abstract
The taphonomic alteration processes of some fossil specimens collected in two quarries in the municipality of Vallecillo in Nuevo León, Mexico, an outcrop corresponding to the middle Cenomanian-Turonian of the Upper Cretaceous, are described. In addition, microfacies analyses were carried out to know the depositional environment based on textures, microfacies and microfaunal content, in order to infer the paleoenvironmental conditions of the sampling area that allowed the preservation of the fossiliferous deposit. It is inferred that there was a local anoxia event caused by stagnation, a phenomenon that allowed the preservation of the Vallecillo material
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References
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