1. Subfamily Metagoniolithoideae H.W. Johansen, 1969
   1. Genus Harveylithon A.Rösler, Perfectti, V.Peña & J.C.Braga, 2016
   2. Genus Metagoniolithon Weber-van Bosse, 1904
2. Subfamily Porolithoideae A.Kato & M.Baba in A.Kato, M.Baba & S.Sida, 2011 (uncertain)
   1. Genus Porolithon Foslie, 1909

marine

Not documented

Guiry, M.D. & Guiry, G.M. (2024). AlgaeBase. World-wide electronic publication, National University of Ireland, Galway (taxonomic information republished from AlgaeBase with permission of M.D. Guiry). Porolithaceae R.A.Townsend & Huisman, 2018. Accessed through: Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2024) African Register of Marine Species at: https://www.marinespecies.org/afremas/aphia.php?p=taxdetails&id=1306670 on 2024-04-24

Odido, M.; Appeltans, W.; BelHassen, M.; Mussai, P.; Nsiangango, S.E.; Vandepitte, L.; Wambiji, N.; Zamouri, N. Jiddou, A.M. (Eds) (2024). African Register of Marine Species. Porolithaceae R.A.Townsend & Huisman, 2018. Accessed at: https://www.marinespecies.org/afremas/aphia.php?p=taxdetails&id=1306670 on 2024-04-24

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