Species

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Total: 95

species valid

Parataxodium wigginsii C.A. Arnold, Lowther Amer. J. Bot., 42(6): 528. 14 Jun 1955

species valid

Osmundites oregonensis C.A. Arnold Pap. Michigan Acad. Sci., 1944, 30: 7. Sep 1945

species valid

Osmundites chandleri C.A. Arnold Palaeontographica, Abt. B, Paläophytol., 92(3-6): 68. Apr 1952

species valid

Oreopanax precoccineus (B.W. Brooks) C.A. Arnold Contr. Mus. Paleontol. Univ. Michigan, 5(8): 98. 30 Oct 1937

species valid

Oreopanax giganteus (Knowlt.) C.A. Arnold Contr. Mus. Paleontol. Univ. Michigan, 5(8): 100. 30 Oct 1937

species valid

Odontopteris maccoyensis C.A. Arnold Contr. Mus. Paleontol. Univ. Michigan, 6(4): 62. 1 Oct 1941

species valid

Nymphaeites rotundus C.A. Arnold Contr. Mus. Paleontol. Univ. Michigan, 5(8): 84. 30 Oct 1937

species valid

Nymphaeites diatoma (MacGinitie) C.A. Arnold Contr. Mus. Paleontol. Univ. Michigan, 5(8): 85. 30 Oct 1937

species valid

Neuropteris saginawensis C.A. Arnold Contr. Mus. Paleontol. Univ. Michigan, 7(9): 192. 29 Dec 1949

species valid

Myeloxylon missouriense C.A. Arnold, Steidtmann Amer. J. Bot., 24(9): 644. 15 Nov 1937

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