$a A fertile species of Triphylloppteris from the early Carboniferous (Mississippian) of southwestern Virginia / Judith E. Skog and Patricia G. Gensel. - [Lancaster], 1980. // American Journal of Botany Vol. 67 No. 4 (1980). $b (Department of Biology, University of North Carolina)
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$a LCA online
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$a VIRTUA10 x
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