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Permineralized trunks of five different gymnospermous taxa have been collected in the Lower Carboniferous (Visean) of the southern Vosges. Some specimens are comparable to species previously discovered in this area and may be attributed to the genera Pitus and Eristophyton known from localities in Scotland and Silesia. The fifth type corresponds to the progymnosperm Protopitys which is recorded for the first time in the Vosges. Present evidence suggests an important taxonomic diversification of the arborescent gymnospermous element of the Visean vegetation which was similar in contemporaneous volcanic environments in the Vosges and Scotland.
Laboratoire de Paléobotanique, Institut des Sciences de l'Evolution, UMR5554, Université Montpellier II, Place Bataillon34095 Montpellier Cedex 5France