Geochronology of Hemphillian-Blancan aged strata, Guanajuato, Mexico, and implications for the timing of the Great American Biotic Interchange
J. J. Flynn,
B. J. Kowallis,
C. Nuñez,
O. Carranza-Castañeda,
W. E. Miller,
C. C. Swisher III, and
and E. Lindsay
2005
Article
Journal of Geology
113:287-307
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