Browsing by Author "Thevenard, Frederic"
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Item Reappraisal of the Triassic flora from Williams Point, Livingston Island (South Shetland Islands, Antarctica) : systematical, biostratigraphical and paleogeographical implications(1995) Barale, Georges; Philippe, Marc; Torres, Teresa; Thevenard, FredericThe more extensive assemblage of fossil plants remains from the Northem part of Williams Point (Livingston Island, South Shetland Islands, Antarctica) is presented. Two different floras were found in the stratigraphical section. Flora I consists in six forms: Dictyophyllum, Cladophlebis, Scoresbya, Sagenopteris, Sphenobaiera, Pagiophyllum. Flora 2 is more diversified with Linguifolium steinmannii, many forms of Dicroidium type, also a new species Cladophlebis williamsensis is recognized. The systematic composition indicates an Upper Triassic age. The autochthony of plants fossils is asserted and permit to infer and to revise the paleogeographical conditions for this region at the end of the Triassic.