Sigmoilopsis minuta (Collins, 1958) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Chromista phylum Foraminifera class Tubothalamea order Miliolida family Hauerinidae genus Sigmoilopsis species Sigmoilopsis minuta Name Synonyms Massilina minuta Collins, 1958 Siphonaperta minuta (Collins, 1958) Homonyms Sigmoilopsis minuta (Collins, 1958)