Taxon - Links and literature
Paleobiology Database [229903]
Paleobiology Database [https://paleobiodb.org/] [as Cleffia Guthörl, 1931]
Data retrieved on: 24 December 2015
The Interim Register of Marine and Nonmarine Genera [1150988]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Cleffia Guthörl, 1931]
Data retrieved on: 30 November 2019