Taxon - Links and literature
Paleobiology Database [31184]
Paleobiology Database [https://paleobiodb.org/] [as Allanicytidium]
Data retrieved on: 30 January 2016
Paleobiology Database [31211]
Paleobiology Database [https://paleobiodb.org/] [as Placocystella]
Data retrieved on: 30 January 2016
The Interim Register of Marine and Nonmarine Genera [1196657]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Allanicytidium Caster & Gill, 1967]
Data retrieved on: 30 November 2019
The Interim Register of Marine and Nonmarine Genera [1102808]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Placocystella Rennie, 1936]
Data retrieved on: 8 December 2019
Dominguéz Alonso P., Jefferies R. P. S., Gil Cid D. (2002): An annotated check-list of genera and species of carpoids, Coloquios de Palcontologia, 53: 33-68 [as Allanicytidium Caster & Gill, 1967]Data retrieved on: 9 January 2016
Dominguéz Alonso P., Jefferies R. P. S., Gil Cid D. (2002): An annotated check-list of genera and species of carpoids, Coloquios de Palcontologia, 53: 33-68 [as Placocystella Rennie, 1936]Data retrieved on: 9 January 2016