Clarionea
Predaea
Biota | Plantae | Biliphyta | Rhodophyta | Eurhodophytina | Florideophyceae | Rhodymeniophycidae | Nemastomatales | Nemastomataceae | Predaea
| Haeckel, 1866 |  | Wettstein, 1901 | G.W.Saunders & Hommersand | Cronquist, 1960 | G.W.Saunders & Hommersand, 2004 | Kylin, 1925 | Ardissone, 1869 | G.De Toni, 1936