Template:Gurgel, Fredericq & Norris, 2003
- Gurgel, C.F.D., Fredericq, S. & Norris, J.N. 2003. Gracilariopsis silvana sp. nov., G. hommersandii sp. nov., and G. cata-luziana sp. nov., three new species of Gracilariaceae (Gracilariales, Rhodophyta) from the western Atlantic. Hidrobiologica 13: 57–68.