Nautilus spengleri var. alpha Fichtel & Moll, 1798 Dataset GBIF Backbone Taxonomy Rank VARIETY Classification kingdom Chromista phylum Foraminifera class Globothalamea order Rotaliida family Calcarinidae genus Calcarina species Calcarina spengleri Name Homonyms Nautilus spengleri var. alpha Fichtel & Moll, 1798