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| | Alvarado-Ortega, Jesús and Porras-Múzquiz, Héctor Gerardo On the presence of Xiphactinus (Teleostei, Ichthyodectiformes) in the Coniacian-Campanian marine deposits of the Piedritas site, Coahuila, northern Mexico. Rev. mex. cienc. geol, 2022, vol.39, no.2, p.142-150. ISSN 1026-8774
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