Genus

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Total: 9

genus valid

Genus Arachnoxylon C.B. Read Bull. Torrey Bot. Club, 1938, 65(9): 601. 5 Jan 1939

genus invalid

Genus Arnoldella C.B. Read J. Paleontol., 10(3): 221. 25 Apr 1936

genus valid

Genus Diichnia C.B. Read J. Paleontol., 10(3): 216. 25 Apr 1936

genus valid

Genus Lycopogenia C.B. Read J. Paleontol., 10(3): 227. 25 Apr 1936

genus valid

Genus Microzygia C.B. Read J. Paleontol., 10(3): 223. 25 Apr 1936

genus valid

Genus Plicorachis C.B. Read, Campbell Amer. Midl. Naturalist, 21(2): 447. Mar 1939

genus valid

Genus Polyxylon C.B. Read, Campbell Amer. Midl. Naturalist, 21(2): 442. Mar 1939

genus valid

Genus Siderella C.B. Read J. Paleontol., 10(3): 224. 25 Apr 1936

genus valid

Genus Sphenoxylon C.B. Read Profess. Pap. U.S. Geol. Surv., 186(E): 91. 22 Apr 1937