Taxon - Odkazy a literatura
The Interim Register of Marine and Nonmarine Genera [1040939]
Rees, T. (compiler): The Interim Register of Marine and Nonmarine Genera [https://www.irmng.org] [jako Orectospira Dall, 1925]
Datum citace: 8. prosinec 2019
Paleobiology Database [10216]
Paleobiology Database [https://paleobiodb.org/] [jako Orectospira Dall, 1925]
Datum citace: 25. leden 2018