Pueschel C. M. K. M. Cole (1982) Rhodophycean pit plugs: an ultrastructural survey with taxonomic implications. American Journal of Botany 69: 703-720
G. W. Saunders & M. H. Hommersand (2004). "Assessing red algal supraordinal diversity and taxonomy in the context of contemporary systematic data". American Journal of Botany 91: 1494–1507.
Yoon, H.S., Muller, K.M., Sheath, R.G., Ott, F.D. & Bhattacharya, D. (2006). Defining the major lineages of red algae (Rhodophyta). Journal of Phycology 42: 482-492.
Lee, R.E. (2008). "Phycology, 4th edition". Cambridge University Press.