MEDULLOPITYS MENENDEZIl N. SP., LEÑO PICNOXILICO DE GIMNOSPERMAS DEL PALEOZOICO SUPERIOR DE MENDOZA, ARGENTINA

Bruno Petriella

Abstract


Medullopitys menendezii N. SP., PYCNOXYLIC GYMNOSPERMOUS WOOD FROM THE UPPER PALAOZOIC OF MENDOZA, ARGENTINA. - In this paper the structure of a new species
of Medullopitys Krausel is described. The medule in heterocellular, non septate, the primary xylern ís endarch and the secondary wood is consídered a Protophyllocladoxylon type with 2-4 simple pitted cross-helds. Medullopitys menendezii n. sp. has a Gondwanic distribution and the same stratigraphic range (Upper Palaeozoic) as the genus Medullopitys in general.

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