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Total: 19

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Genus Zygosporites Will. Philos. Trans. Roy. Soc. London, 171(2): 516. 10 Nov 1880

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Genus Zygosporites Will. ex P.A. Friedrich Neues Jahrb. Mineral. Geol., 1881, 1((Referate)): 311. 1881

genus valid

Genus Sporocarpon Will. Philos. Trans. Roy. Soc. London, 1878, 169(2): 347. 4 Nov 1880

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Genus Rachiopteris Will. Philos. Trans. Roy. Soc. London, 1875, 164(2): 677. 2 Apr 1875

genus valid

Genus Rachiopteris Will. Proc. Roy. Soc. London, 25(171): 68. 18 May 1876

genus valid

Genus Psaronites Will. 453.

genus valid

Genus Physostoma Will. Nature, 12(307): 442. 16 Sep 1875

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Genus Oidospora Will. Philos. Trans. Roy. Soc. London, 1878, 169(2): 357. 4 Nov 1880

genus valid

Genus Malacotesta Will. Proc. Roy. Soc. London, 25(171): 71. 18 May 1876

genus valid

Genus Lagenostoma Will. Nature, 12(307): 442. 16 Sep 1875

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