The INTERNATIONAL FOSSIL PLANT NAMES INDEX
Global registry of scientific names of fossil organisms covered by the International Code of Nomenclature for Algae, Fungi, and Plants and the International Code of Zoological Nomenclature © 2014-2025

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Total: 18440

genus valid

Genus Speirothamnion Pa. Savi, Menegh. in Murch. Mem. Strutt. Geol. Alpi 424. 1850

genus valid

Genus Myelophycus E.O. Ulrich Harriman Alaska Exped., 4: 145. 18 Feb 1904

genus valid

Genus Helminthopsis Heer Fl. Foss. Helvet., (3): 116. 12 Nov 1877

genus valid

Genus Palaeodictyon Heer Urwelt Schweiz, (3-11): 246. 25-26 Aug 1864

genus valid

Genus Helminthoida Schafh. ex Heer Fl. Foss. Helvet., (4): 167. 1877

genus unavailable

Genus Helminthoida Schafh. Geogn. Untersuch. Bayer. Landen, (1): 142. 13 Feb 1851

genus valid

Genus Gilbertina E.O. Ulrich Harriman Alaska Exped., 4: 140. 18 Feb 1904

genus valid

Genus Gyrodendron E.O. Ulrich Harriman Alaska Exped., 4: 140. 18 Feb 1904

genus valid

Genus Retiphycus E.O. Ulrich Harriman Alaska Exped., 4: 139. 18 Feb 1904

genus unavailable

Genus Arthrodendron E.O. Ulrich Harriman Alaska Exped., 4: 138. 18 Feb 1904