ALGUNAS MIOSPORAS CARBONICAS DE LA FORMACION AGUA COLORADA, PROVINCIA DE LA RIOJA

Carlos A Azcuy, Pedro A Gutierrez, Viviana D Barreda

Abstract


SOME CARBONIFEROUS MIOSPORES FROM AGUA COLORADA FORMATION,LA RIOJA
PROVINCE.- A palynologic study of several samples collected. at a locality situated OD
the eastern flank of the Sierra de Famatina is made. The miospores are found in carbonaceous
claystones that belong to the, Agua Colorada Formation. Ten species are described,
corresponding to the genera Punctatisporites, Anapiculatisporites, Apiculiretusispora , Raistrickia
, Dictyotriletes, Ahrensisporites y Tetraporina . Also, some monosaccate pollen grains are
present; they were not determined because they lack the central body. The first mention oí
Ahrensisporites cristatus is significative; thís species has been recorded so far in Australian
sequences, probably of the same age. The presence of several species in common with the
known associations from Malanzán - Loma Larga and Pircas (= Tambillos river) within the
Paganzo Basin, is also noted.

Full Text:

 Subscribers Only