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Total: 37

genus valid

Genus Sorocladus Lesq. Sec. Geol. Surv. Pennsylvania Rept. Progr., 1880, P(1): 327. 21 Jan 1881

genus valid

Genus Sporocystis Lesq. Sec. Geol. Surv. Pennsylvania Rept. Progr., 1880, P(2): 458. 21 Jan 1881

genus valid

Genus Staphylopteris C. Presl ex Lesq. in D.D. Owen Sec. Rep. Geol. Reconnoiss. Arkansas 309. 1860

genus unavailable

Genus Taeniophyllum Lesq. Proc. Amer. Philos. Soc., 17(101): 330. 27 Mar 1878

genus unavailable

Genus Viburnites Lesq. Monogr. U.S. Geol. Surv., 1891, 17: 124. Oct 1892

genus valid

Genus Viburnites Lesq. in Ward Rep. (Annual) U.S. Geol. Surv., 19, (2): 709. Nov 1899

genus valid

Genus Winchellia Lesq. Amer. Geol., 12(4): 209. Oct 1893

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