Eurypterus tetragonophthalmus (Fischer, 1839) Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Merostomata family Eurypteridae genus Eurypterus species Eurypterus tetragonophthalmus Name Synonyms Baltoeurypterus tetragonophthalmus (Fischer, 1839) Homonyms Eurypterus tetragonophthalmus (Fischer, 1839)