Ammonite biostratigraphy, lithofacies variations, and paleoceanographic implications for barremian-aptian sequences of northeastern Mexico
Two Barremian-Aptian sequences studied in Durango and Nuevo Leon States, northeastern Mexico include three lithic units which have been described as the Cupido Formation of Barremian-early Early Aptian age, its lateral equivalent, the Lower Tamaulipas Formation, and the La Pena Formation extending t...
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FIU Digital Commons
2000
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Online Access: | https://digitalcommons.fiu.edu/etd/1402 https://doi.org/10.25148/etd.FI14050434 https://digitalcommons.fiu.edu/context/etd/article/2539/viewcontent/barragan__richardo_thesis.compressed.pdf |