CEDRIPITES TECTUS OTTONE ET RODRÍGUEZ AMENÁBAR, SP. NOV., A NEW DISACCATE POLLEN GRAIN FROM THE TRIASSIC OF ARGENTINA.

OTTONE, E.G., RODRIGUEZ AMENABAR, C.

AMEGHINIANA

Asociación Paleontológica Argentina

Lugar: Capital Federal; Año: 2001 vol. 38 p. 157 - 161

0002-7014

Abstract:  Cedripites tectus sp. nov., from the Late Triassic Rincón Blanco Group of san Juan Province, west of Argentina, is a haploxylonoid to slightly dyploxilonoid disaccate pollen grain with a longitudinally oval amb. The corpus is almost rhombic in polar view and trapezium-like in off-polar compression. The sacci show a strong distal inclination and merge gradually with the corpus, encompassing a narrow cappula about one tenth of the corpus breath. A brief discussion on Cedrus-like fossil miospores validates the usage of Cedripites Wodehouse.   Key words. Argentina. Triassic. Disaccate pollen grains. Cedripites. Systematic.