La tafoflora Triásica del Cajón Troncoso, Alta Cordillera del Maule, 7ª Region, Chile

Resumen

The Triassic flora of Cajón Troncoso, Cordillera del Maule, 7^th Region, Chile. Six fossil leaf taxa and one seed from an outcrop in the high andean range at the Maule region, Chile, are described. This assemblage is composed of: Asterotheca sp., Cladophlebis kurtzii Frenguelli vel Cladophlebis mesozoica Frenguelli, Cladophlebis cf. copiosa Frenguelli, Dictyophyllum (Dictyophyllum) tenuifolium (Stipanicic & Menéndez) Bonetti & Herbst, Pterophyllum azcaratei Herbst & Troncoso, Linguifolium lilleanum Arber and Semina incertae sedis. Additionally, fragments of Dicroidium, Heidiphyllum and Rochipteris have also been found. This association allows us to assign a Triassic age to the beds. These sediments were included by earlier authors in the non-formal "Estratos del Cajón Troncoso". Relations of this taphoflora to other Triassic taphofloras from Chile and Argentina are briefly discussed.