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Total: 19

genus unavailable

Genus Calamopitus Will. 174, 177, 178.

genus valid

Genus Dictyoxylon Will. 68.

genus valid

Genus Psaronites Will. 453.

genus valid

Genus Edraxylon Will. Proc. Roy. Soc. London, 20(136): 438. 25 Sep 1872

genus valid

Genus Arpexylon Will. Proc. Roy. Soc. London, 20(136): 438. 25 Sep 1872

genus valid

Genus Amyelon Will. Proc. Roy. Soc. London, 20(136): 436. 25 Sep 1872

genus valid

Genus Astromyelon Will. Proc. Roy. Soc. London, 20(136): 436. 25 Sep 1872

genus valid

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

genus valid

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

genus unavailable

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

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