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Total: 7

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Genus Proto-Lepidodendron Krejčí in C.E. Weiss Neues Jahrb. Mineral. Geol., 1881, 1(1[Referaten]): 143. 14 Dec 1880

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Genus Proto-Lepidodendron Krejčí in Nekut Vesmír, 2(9): 22. 1 Nov 1879

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Genus Proto-Lepidodendron Krejčí Sitzungsber. Königl. Böhm. Ges. Wiss. Prag, 1879 203. 1880

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Genus Protolepidodendron Krejčí ex E.W. Berry Rep. (Annual) Board Regents Smithsonian Inst., 1918 328. 30 Jun 1920

genus valid

Genus Protopteridium Krejčí ex C.E. Weiss Neues Jahrb. Mineral. Geol., 1881, 1(1[Referaten]): 143. 14 Dec 1880

genus unavailable

Genus Protopteridium Krejčí Sitzungsber. Königl. Böhm. Ges. Wiss. Prag, 1879 203. 1880

genus unavailable

Genus Protopteridium Krejčí in Nekut Vesmír, 2(9): 22. 1 Nov 1879

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