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Total: 37

genus valid

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

genus valid

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

genus unavailable

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

genus unavailable

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

genus valid

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

genus valid

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

genus valid

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

genus unavailable

Genus Scolopendrites Lesq. Boston J. Nat. Hist., 6(4): 425. Aug 1854

genus valid

Genus Rhizolithes Lesq. in D.D. Owen Sec. Rep. Geol. Reconnoiss. Arkansas 313. 1860

genus valid

Genus Ptenostrobus Lesq. Rept. U.S. Geol. Surv. Territ., 6: 114. 1874

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