Dicranophyllum glabrum (Dawson) Stopes, an unusual element of lower Westphalian floras in Atlantic Canada
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.
Palabras clave
Dicranophyllum, Langsettian, New Brunswick, Nova Scotia
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