Aguirre, J.; Perfectti, F.; Braga, J.C. Integrating phylogeny, molecular clocks, and the fossil record in the evolution of coralline algae (Corallinales and Sporolithales, Rhodophyta). Paleobiology. 2010, 36 (4): 519. doi:10.1666/09041.1.
Blackwell, W. H.; Marak, J. H.; Powell, M. J. The Identity and Reproductive Structures of a Misplaced Solenopora (Rhodophycophyta) from the Ordovician of Southwestern Ohio and Eastern Indiana. Journal of Phycology. 1982, 18: 477. doi:10.1111/j.0022-3646.1982.00477.x.