Ptilothamnion
Protoctista | Ceramiaceae | Ptilothamnion
Ptilothamnion
Biota | Plantae | Biliphyta | Rhodophyta | Eurhodophytina | Florideophyceae | Rhodymeniophycidae | Ceramiales | Wrangeliaceae | Lejolisieae | Ptilothamnion
| Haeckel, 1866 |  | Wettstein, 1901 | G.W.Saunders & Hommersand | Cronquist, 1960 | G.W.Saunders & Hommersand, 2004 | Nägeli, 1847 | J.Agardh, 1851 | Feldmann-Mazoyer, 1941 | Thuret, 1863