SINOPSIS DE LAS CORYSTOSPERMACEAE (CORYSTOSPERMALES, PTERIDOPHYTA) DE ARGENTINA. III. TRONCOS Y CRONOESTRATIGRAFÍA

Bruno Petriella

Abstract


SYNOPSIS OF THE CORYSTOSPERMACEAE FROM ARGENTINA. III. TRUNKS AND CHRONOSTRATIGHAPHY. - Data on references, original diagnosis, types and occurrence on Rhexoxylon from Argentina are supplied. The chronostratigraphic range of specíes discussed in this Synopsis is also given; it is concluded that certain Argentine Triassic florules may be older than Upper Ladinian.

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