Order Ceramiales (red algae)
Florideophyceae - Ceramiales - Rhodymeniophycidae
Parent taxon: Rhodymeniophycidae according to C. W. Schneider and M. J. Wynne 2007
See also Parker and Dawson 1965 and Taylor et al. 2008
Sister taxa: Acrosymphytales, Bonnemaisoniales, Gelidiales, Gigartinales, Gracilariales, Halymeniales, Nemastomatales, Plocamiales, Rhodymeniales, Sebdeniales
Subtaxa: Ceramiaceae Dasyaceae Delesseriaceae Delesserites Paleothamnion Rhodomelaceae Sarcomeniaceae
Distribution:
• Miocene of United States (1: California collection)
• Eocene of Italy (1)
• Delamaran of Canada (11: British Columbia)
Total: 13 collections each including a single occurrence