Dicranophyllum glabrum (Dawson) Stopes, an unusual element of lower Westphalian floras in Atlantic Canada

• Autores: Robert Herman Wagner
• Localización: Spanish journal of palaeontology, ISSN 2255-0550, Vol. 20, Nº. 1, 2005 (Ejemplar dedicado a: REVISTA ESPAÑOLA DE PALEONTOLOGÍA), págs. 7-13
• Idioma: inglés
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• Resumen

  • Rare but well preserved repeatedly dichotomised leaves, apparently in a single plane, are identified with Dicranophyllum, an unusual gymnosperm attributed to a special order, the Dicranophyllales. The specimens recorded here from the “Fern Ledges” at Saint John, New Brunswick are from lower Westphalian (Langsettian) strata, which is a low horizon for this genus, which is best known from the Stephanian and Lower Permian. Comparison is made with various species described from the Carboniferous in Europe.