Abstract
La Mesa Central de Copoya, Selachifauna, middle Eocene San Juan Formation, the Tuxtla Gutiérrez-Chiapas de Corzo-Suchiapa area, west-central Chiapas, southeastern Mexico, consists of these taxa: Nebrius sp., Strilatolamnia macrota, Carcharias sp., Odontaspis? sp., Isurus cf., I. praecursor, Carcharodon auriculatus, Hemipristis sp., Galeocerdo sp., an indeterminated odontaspid, and a posible carcharhinid… download the full paper in PDF.
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