Summary: | Plant remains from the Byers Peninsula, South Shetlands Islands, are described. These are leaves referred to Taeniopteris sp. and female fructifications referred to Carnoconites llambiasii Cesari sp. nov. They are considered to belong to the Pentoxylales, originally described from India, Australia and New Zealand. This is the first record of this group of gymnosperms from Antarctica. The occurrence contributes to further differentiation between floras of this part of Gondwana and Laurasia. Fil:Césari, S.N. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Parica, C.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Remesal, M.B. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Salani, F.M. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina.
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