Placenticeras pacificum (Smith, 1900) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Mollusca class Cephalopoda family Placenticeratidae genus Metaplacenticeras species Placenticeras pacificum Name Synonyms Metaplacenticeras pacificum (Smith, 1900) Homonyms Placenticeras pacificum (Smith, 1900)