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Total: 38

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

genus valid

Genus Leptophloeum Dawson Quart. J. Geol. Soc. London, Part I, 18(72): 316. 1 Nov 1862

genus valid

Genus Syringoxylon Dawson Quart. J. Geol. Soc. London, Part I, 18(72): 305. 1 Nov 1862

genus unavailable

Genus Rhachiopteris Dawson Quart. J. Geol. Soc. London, Part I, 18(72): 323. 1 Nov 1862

genus valid

Genus Leptophloeum Dawson in C.H. Hitchc. Rep. (Annual) Secr. Maine Board Agric., 1861, (6): 249. 1862

genus unavailable

Genus Acanthophyton Dawson Quart. J. Geol. Soc. London, Part I, 18(72): 324. 1 Nov 1862

genus unavailable

Genus Nematoxylon Dawson Quart. J. Geol. Soc. London, 19(4 [76]): 466. 1 Nov 1863

genus unavailable

Genus Sporangites Dawson Canad. Naturalist Geol., 1863, 8(6): 454. 30 Jan 1864

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