ULTRAESTRUCTURA DE LA EXINA EN EJEMPLARES CARBONIFEROS DE LUNDBLADISPORA (LICOFITA),LA RIOJA, ARGENTINA

ARCHANGELSKY, S.; CESARI, S.N.

AMEGHINIANA

ASOCIACION PALEONTOLOGICA ARGENTINA

Año: 1990

0002-7014

The aMite mictolpOte LmuJbladispora, found in Carboniferous 5trata of (he Tupc Formation, LaRtoja prcwiDCe,Araentina, hu. two la)ered exine. The QUterthicit ´ponl)´ 1.)´CrhaScxtcmal minute perforationslnd Kulpa"raldements: ill ullrutrv.ctu~ is atvc.olar. Tbe inner layer illhin, continuous, often detached from the outer spongy Ia~r. Sporesart.stronpyoomprtsa:.ed and so are the IJ*es between 5pOropolJenin muri of outer layer. Exine oompect areas are the result0( rOililiution. Complfin& with ro.iI taxa,Lundblaoopot´Q resembles morc the muoz.oic DQuoisporilts; it has been found inlhe heltnllPOrous CODe SkiJ/i.omobus (rom the Alstrali.ln Permian and Triassic slra,a. eonsidcraliOlll are made about theprobtble functm o( Ihe sponl)´cJdne as rea.ted to the pllleonvironmenisand post-glad .. , c:limalic ~gjme that ch´~leritedthe lale CarbonifctOUli of the Papnw Basin.