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Paleozoic Seed Ferns: Heterangium kentuckyensis sp. nov., from the Upper Carboniferous of North America.
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Stockey, R.A., Pigg, K.B., Taylor, T.N.
Heterangium kentuckeyensis sp. nov. is described from Lower/Middle Pennsylvanian sediments of eastern Kentucky, based on permineralized stems, petioles, frond members, laminar foliage, and roots, including several organs in attachment. Stems 2.2 to 5.8 mm in diameter are known in several...
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