We thank David Amsbury for his valuable comments on our article and appreciate his detection of possibly contradictory and misleading usage of stratigraphic and paleogeographic terminology. It was not our intention to confuse stratigraphers regarding the Lower Cretaceous rocks of northeastern Mexico and Texas, and we welcome the opportunity to reply to his comments.

Amsbury criticizes our choices for naming the Lower Cretaceous Cupido (Barremian-Aptian) and Coahuila (Aptian-Albian) platforms described in our article. Our choice of the term “Coahuila platform” was not one of simple convenience, however, as there is abundant precedence in the literature for that name. The “Coahuila...

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