Crassa
Crassiphycus
Biota | Plantae | Biliphyta | Rhodophyta | Eurhodophytina | Florideophyceae | Rhodymeniophycidae | Gracilariales | Gracilariaceae | Gracilarioideae | Gracilarieae | Crassiphycus
| Haeckel, 1866 |  | Wettstein, 1901 | G.W.Saunders & Hommersand | Cronquist, 1960 | G.W.Saunders & Hommersand, 2004 | S. Fredericq & M.H. Hommersand, 1989 | Nägeli, 1847 | Stizenberger, 1860 | Willkomm, 1854 | Guiry, J.N.Norris, Fredericq & Gurgel, 2018