Taxon - Links and literature
Paleobiology Database [7704]
Paleobiology Database [https://paleobiodb.org/] [as Orthotheca Novak, 1886]
Data retrieved on: 11 December 2015
The Interim Register of Marine and Nonmarine Genera [1292149]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [as Orthotheca Novák, 1887]
Data retrieved on: 29 November 2019