Resumo

HERBST, Rafael; TRONCOSO, Alejandro  e  MUNOZ, Jorge. The Triassic taphofloras from the Lake district, xth Region, Chile. Ameghiniana [online]. 2005, vol.42, n.2, pp.377-394. ISSN 1851-8044.

A list of the fossil plants, in some cases with their description, from the Panguipulli and Tralcán Formations, from the localities Licán Ray, Punta Peters and Cerro Tralcán, from the Lake District (72º15' S and 39º30'/39º45' W), Xth Region, Chile, is presented. The flora is composed of 27 species of the following genera: Hepatica indet., Neocalamites , Asterotheca , Cladophlebis , Gleichenites , Dicroidium , Johnstonia , Lepidopteris , Pterophyllum , Pseudoctenis , Sphenobaiera , Ginkgoites , Phoenicopsis , Rissikia , Heidiphyllum , Gen. et sp. indet., Linguifolium and Taeniopteris ; a new species of Astrerotheca and two new species of Pterophyllum are also described. The quantitative composition of the three localities is analyzed showing that they are quite different, in spite of being of similar age and geographically close to each other; it is suggested that the difference is basically paleoenvironmental.

Palavras-chave : Fossil flora; Impressions; Upper Triassic; Southern Chile.