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Included On The Following Pages:

• Life (creatures)
• Cellular (cellular organisms)
• Eukaryota (eukaryotes)
• Opisthokonta (opisthokonts)
• Metazoa (Animal)
• Bilateria
• Deuterostomia (deuterostomes)
• Chordata (Chordates)
• Vertebrata (vertebrates)
• Gnathostomata (jawed fish)
• Chondrichthyes (cartilaginous fishes)
• Elasmobranchii ("sharks, skates and rays")
• Batoidea
• Myliobatiformes (stingrays and relatives)
• Urotrygonidae (American round stingrays)
• Urotrygon
• Urotrygon nana (Dwarf round ray)

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