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Total: 76

genus valid

Genus Pterobalanus E.W. Berry Profess. Pap. U.S. Geol. Surv., 131(A): 20. 27 Jul 1922

genus valid

Genus Protophyllocladus E.W. Berry Bull. Torrey Bot. Club, 30(8): 440. 4 Aug 1903

genus valid

Genus Protolepidodendron Krejčí ex E.W. Berry Rep. (Annual) Board Regents Smithsonian Inst., 1918 328. 30 Jun 1920

genus unavailable

Genus Pouterlabatia E.W. Berry Special Pap. Geol. Soc. Amer., 12: 123. 15 Jul 1938

genus valid

Genus Polioexolobus E.W. Berry Special Pap. Geol. Soc. Amer., 12: 128. 15 Jul 1938

genus valid

Genus Pestalozzites E.W. Berry Profess. Pap. U.S. Geol. Surv., 98(M): 230. 23 Aug 1916

genus valid

Genus Paranymphaea E.W. Berry Mem. Canada Geol. Surv., (182): 39. 1935

genus valid

Genus Paraengelhardtia E.W. Berry Profess. Pap. U.S. Geol. Surv., 91: 186. Aug 1916

genus valid

Genus Papilionites E.W. Berry Profess. Pap. U.S. Geol. Surv., 92: 171. Oct 1924

genus valid

Genus Nyctaginites E.W. Berry Special Pap. Geol. Soc. Amer., 12: 72. 15 Jul 1938

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