Schweitzer, C. E., & Feldmann, R. M. (2020). Treatise Online no. 130: Part R, Revised, Volume 1, Chapter 8T8: Systematic descriptions: Superfamilies Belloidea, Bythograeoidea, Dairoidea, and Palicoidea. Treatise Online. https://doi.org/10.17161/to.vi.13422