Opinion 1456 Ammonites (currently Euaspidoceras) Perarmatus J. Sowerby, June 1822 (Cephalopoda, Ammonoidea): conserved despite the senior primary homonym ammonites (currently Peronoceras) Perarmatus Young & Bird, [may] 1822
Published in Bulletin of Zoological Nomenclature, in 1987, in volume 44, issue 3, pages 212-213
Date published:1987-09-25