MCCOURT, Richard M.; GRAMBAST-FESSARD, Nicole; KAROL, Kenneth G. Part B, Protista 1, Ch. 4, p. 77-91. Treatise on Invertebrate Paleontology, [S. l.], 2005. DOI: 10.17161/dt.v0i0.5085. Disponível em: https://journals.ku.edu/InvertebratePaleo/article/view/5085. Acesso em: 2 apr. 2025.