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Marthasterias glacialis, Photo: Michael Lahanas
Cladus: Eukaryota Supergroup: Unikonta Cladus: Opisthokonta Regnum: Animalia Subregnum: Eumetazoa Cladus: Bilateria Cladus: Nephrozoa Cladus: Deuterostomia Phylum: Echinodermata Subphylum: Eleutherozoa Superclassis: Asterozoa Classis: Asteroidea Ordo: Forcipulatida Familia: Asteriidae Genus: Marthasterias Species: Marthasterias glacialis
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