| Name | Johnsonia Korde |
| Authorship | Korde |
| Rank | Genus |
| NomenclaturalStatus | LaterHomonym |
| Placed in | Chlorophyceae-Dasycladaceae |
| Remarks | later homonym (non P. Miller 1754 (nom. rej.)); Type: J. spinosa K. B. Korde; Upper Permian (Guadelupian); U.S.S.R. (Nakhichevanskaya A.S.S.R.). FOSSIL-Algae |
| Citation | 1965 Trudy Paleontol. Inst. Akad. Nauk SSSR 108: 275 |