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Middle Permian crinoids (Echinodermata, Crinoidea) from Cerros Los Monos, Caborca, Sonora, Mexico and paleogeographic considerations Buitrón-Sánchez,Blanca E. - Almazán-Vázquez,Emilio - Vachard,Daniel
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2.
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Late Pleistocene (Rancholabrean) Glyptodont and Pampathere (Xenarthra, Cingulata) from Sonora, Mexico Mead,Jim I. - Swift,Sandra L. - White,Richard S. - McDonald,H. Greg - Baez,Arturo
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