HESS, Hans. Treatise Online, no. 16, Part T, Revised, Volume 1, Chapter 19: Paleoecology of pelagic crinoids. Treatise Online, [S. l.], 2011. DOI: 10.17161/to.v0i0.4086. Disponível em: https://journals.ku.edu/treatiseonline/article/view/4086. Acesso em: 13 may. 2025.