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45

Umbonium (Solariorbis) floridanum Dall Pliocene, Tola. Proc. U.S. Nat. Mus, XVIII, no. 1035, 1896, p. 45.

Umbonium (Solariorbis) undula Dall Miocene, N. Car., Proc. U.S. Nat. Mus, XVIII, no. 1035, 1896, p. 46.

Umbonium (Solariorbis) duplinense Dall, Miocene, Fla., Proc. U.S. Nat. Mus, XVIII, no. 1035, 1896, p. 46.

*Genus Lepidodesma Simpson. Proc. U.S. Nat. Mus. XVIII, No. 1068, May 20th, 1896. p. 311.

Unio subplanatus Simpson. Triassic. Proc. U.S. Nat Mus. XVIII, No. 1072, May 20th, 1896, p. 383, figs. 1-2 in text

Unio dumblei Simpson. Triassic Proc. U.S. Nat. Mus. XVIII, No. 1072, May 20th 1896. p. 383. fig. 3, in text

Unio graciliratus Simpson. Triassic. Proc. U.S. Nat. Mus. XVIII, No. 1072, May 20th 1896. p. 384, fig. 4 in text

Unio dockumensis Simpson. Triassic Proc. U.s. Nat. Mus. XVIII, No. 1072, May 20th 1896. p. 384. fig. 5, in text.