Megathura

Cladus: Eukaryota
Supergroup: Opisthokonta
Regnum: Animalia
Subregnum: Eumetazoa
Cladus: Bilateria
Cladus: Nephrozoa
Cladus: Protostomia
Cladus: Spiralia
Cladus: Lophotrochozoa
Phylum: Mollusca
Classis: Gastropoda
Subclassis: Orthogastropoda
Superordo: Vetigastropoda
Superfamilia: Fissurelloidea
Familia: Fissurellidae
Subfamilia: Emarginulinae
Tribus: Diodorini
Genus Megathura
Species: M. californica - M. crenulata

Name

Megathura Pilsbry in Tryon & Pilsbry, 1890