%0 Journal Article
%T Nuevas especies de Quercus (Fagaceae) en el Plioceno de Santa Mar¨ªa Amajac, Hidalgo, M¨¦xico
%A Velasco-de Le¨®n
%A Mar¨ªa Patricia
%A Ortiz-Mart¨ªnez
%A Erika Lourdes
%J Revista mexicana de ciencias geol¨®gicas
%D 2010
%I Universidad Nacional Aut¨®noma de M¨¦xico
%X using foliar architecture seven new fossil species of the fagaceae family are described for mexico: quercus amajensis, q. cevalli, q. curvensis, q. grandensis, q. hidalgensis, q. ovatus and q. rugosus. fossil leaf impressions were collected in the areas of sanctorum and los ba£¿os, in the atotonilco el grande formation in hidalgo. the phenetic analysis performed allow us to conclude which characters are important in defining the new species: ramification of the tertiary veins, fifth order venation, shape and size of the areole, the presence of inter-secondary veins and secondary veins ramification within the tooth. these results support the importance of the trans-mexican volcanic belt as a speciation area.
%K foliar architecture
%K taxonomy
%K quercus
%K oak
%K pliocene
%K hidalgo
%K mexico.
%U http://www.scielo.org.mx/scielo.php?script=sci_abstract&pid=S1026-87742010000200006&lng=en&nrm=iso&tlng=en