Reference

Alain Dubois, Roger Bour (2010): The distinction between family-series and class-series nomina in zoological nomenclature, with emphasis on the nomina created by Batsch (1788, 1789) and on the higher nomenclature of turtles – Bonn zoological Bulletin - früher Bonner Zoologische Beiträge. – 57: 149 - 171.