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Total: 38

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Genus Platyphyllum Dawson Fossil Pl. Erian (Devon.) Canada, (2): 101. 1882

genus unavailable

Genus Platyphyllum Dawson Geol. Hist. Pl. 74. 11-18 Feb 1888

genus valid

Genus Protannularia Dawson Сhain Life Geol. Time 92. 4 Aug 1880

genus unavailable

Genus Protosalvinia Dawson in J.M. Clarke Amer. J. Sci., Series 3, 29(172): 287, 288. Apr 1885

genus unavailable

Genus Protosalvinia Dawson Proc. Amer. Assoc. Advancem. Sci., 1883, 32: 262. 1884

genus unavailable

Genus Protosalvinia Dawson Bull. Chicago Acad. Sci., 1(9): 115. 29 Jun 1886

genus valid

Genus Prototaxites Dawson Quart. J. Geol. Soc. London, Part I, 15(60): 484. 1 Nov 1859

genus unavailable

Genus Prototaxites Dawson London Edinburgh Dublin Philos. Mag. & J. Sci., Series 4, 17(CXII): 148. Feb 1859

genus valid

Genus Psilophyton Dawson London Edinburgh Dublin Philos. Mag. & J. Sci., Series 4, 17(CXII): 147. Feb 1859

genus valid

Genus Ptilophyton Dawson Canad. Naturalist & Quart. J. Sci., 8(7): 385. 10 Apr 1878

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