Megalograptus ohioensis Caster & Kjellesvig-Waering, 1964 Dataset GBIF Backbone Taxonomy Rank SPECIES Classification kingdom Animalia phylum Arthropoda class Merostomata family Eurypteridae genus Megalograptus species Megalograptus ohioensis Name Homonyms Megalograptus ohioensis Caster & Kjellesvig-Waering, 1964