1. Tribe Antithamnieae Hommersand, 1963
   1. Genus Antithamnion Nägeli, 1847
2. Tribe Bornetieae R.N. Baldock & H.B.S. Womersley, 1998
3. Tribe Ceramieae (Dumortier) Schmitz, 1889
   1. Genus Ceramium Roth, 1797
   2. Genus Gayliella T.O.Cho, L.J.McIvor & S.M.Boo, 2008
   3. Genus Microcladia Greville, 1830
   4. Genus Pseudoceramium Barros-Barreto & Maggs, 2023
   5. Genus Stirkia Barros-Barreto & Maggs, 2023
   6. Genus Yoneshiguea Barros-Barreto, Maggs & M.A.Jaramillo, 2023
4. Tribe Dohrnielleae Feldmann-Mazoyer, 1941
   1. Genus Antithamnionella Lyle, 1922
5. Tribe Heterothamnieae Wollaston, 1968
6. Tribe Pterothamnieae A. Athanasiadis, 1996
   1. Genus Pterothamnion Nägeli, 1855
7. Tribe Scagelieae Athanasiadis, 1996
   1. Genus Scagelia E.M.Wollaston, 1972
8. Tribe Scagelothamnieae Athanasiadis, 1969
   1. Genus Scagelothamnion Athanasiadis, 1996

marine, brackish, fresh

Guiry, M.D. & Guiry, G.M. (2025). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Ceramioideae De Toni, 1903. Accessed through: The UK Marine Environmental Data and Information Network (2025) Marine Species of the British Isles and Adjacent Seas (MSBIAS): a checklist of species derived from the UNICORN and Marine Recorder applications at: https://www.marinespecies.org/msbias/aphia.php?p=taxdetails&id=368722 on 2025-07-10

The UK Marine Environmental Data and Information Network (2025). Marine Species of the British Isles and Adjacent Seas (MSBIAS): a checklist of species derived from the UNICORN and Marine Recorder applications. Ceramioideae De Toni, 1903. Accessed at: https://www.marinespecies.org/msbias/aphia.php?p=taxdetails&id=368722 on 2025-07-10

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