Opinion 301 Designation, under the Plenary Powers, of a type species for Procerites Siemiradzki, 1898 (class Cephalopoda, order Ammonoidea) in harmony with accustomed nomenclatorial usage
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1954, in volume 8, issue 18, pages 249-260
Date published:1954-10-26