Treatise Online, no. 38: Part E, Revised, Volume 4, Chapter 18: General features of the Archaeocyatha Treatise Online, no. 38: Part E, Revised, Volume 4, Chapter 18: General features of the Archaeocyatha
Treatise Online no. 50: Part E, Revised, Volume 4, Chapter 19: Systematic descriptions: Archaeocyatha Treatise Online no. 50: Part E, Revised, Volume 4, Chapter 19: Systematic descriptions: Archaeocyatha
Treatise Online no. 54: Part E, Revised, Volume 4, Chapter 20A: Radiocyaths and potentially allied taxa. Treatise Online no. 54: Part E, Revised, Volume 4, Chapter 20A: Radiocyaths and potentially allied taxa.
Treatise Online no. 55: Part E, Revised, Volume 4, Chapter 20B: Cribricyaths and microfossils of uncertain affinity resembling cribricyaths Treatise Online no. 55: Part E, Revised, Volume 4, Chapter 20B: Cribricyaths and microfossils of uncertain affinity resembling cribricyaths
Treatise Online no.56: Part E, Revised, Volume 4, Chapter 20C: Archaeocyatha and Cribricyatha nomina nuda; Taxa not Archaeocyatha, Radiocyatha, or Cribricyatha. Treatise Online no.56: Part E, Revised, Volume 4, Chapter 20C: Archaeocyatha and Cribricyatha nomina nuda; Taxa not Archaeocyatha, Radiocyatha, or Cribricyatha.