Opinion 554 Validation under the Plenary Powers of the generic name Hoplitoplacenticeras as from Paulcke, 1906 (Class Cephalopoda, Order Ammonoidea), and designation under the same Powers of a type species for the genus so named
Published in Opinions and declarations rendered by the International Commission on Zoological Nomenclature, in 1959, in volume 20, issue 21, pages 241-248
Date published:1959