Pleistocene mammals of Mexico: A critical review of regional chronofaunas, climate change response and biogeographic provinciality
Por:
Ferrusquía-Villafranca I., Arroyo-Cabrales J., Martínez-Hernández E., Gama-Castro J., Ruiz-González J., Polaco O.J., Johnson E.
Publicada:
15 abr 2010
Categoría:
Earth-Surface Processes
Resumen:
Mexico's Pleistocene terrestrial mammal record includes 13 orders, 44 families, 147 genera and 280 species, thus is comparable to the Recent one, but shows greater ordinal and family diversity. Post-Pleistocene extinction chiefly involved meso- and megabaric species. The mammal, palynologic and paleosol records are strongly time and space biased in favor of Late Rancholabrean data from a few morphotectonic provinces; hence, only broad climatic trends could be delineated, which approximately coincide with those known for the Wisconsinan; they disclose by 25-12 ka, greater moisture and cooler temperature conditions than at present, coinciding too with a larger mammalian diversity and local faunas disharmony. Climate fluctuations impacted the fauna, causing species distribution changes and extinctions. The Recent fauna's complex biogeographic pattern reflects this; it includes tropical and temperate species associations outside their respective latitudes. Combining geologic and Recent mam
Filiaciones:
Univ Nacl Autonoma Mexico, Inst Geol, Mexico City 04510, DF, Mexico
Laboratorio de Arqueozoología, Instituto Nacional de Antropología e Historia, Centro Histórico, Moneda 16, México, DF, Mexico
Museum of Texas Tech University, Lubbock, TX, United States
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