Direction 70 Validation under the Plenary Powers of the family-group name Arieticeratinae Howarth, 1955 (class Cephalopoda, order Ammonoidea) (Direction supplementary to Opinion 337)
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1957, in volume 16, issue 19, pages i-xii
Date published:1957-07-31