Direction 14 Addition to the Official List of family- group names in Zoology or, as the case may be, to the Official Index of Rejected and Invalid family-group names in Zoology of the family-group names Involved in the applications relating to the names of ammonites published in volume 2 of the Bulletin of Zoological nomenclature
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1955, in volume 10, issue 18, pages 463-480
Date published:1955-06-27