cellular organisms >>> Eukaryota >>> Opisthokonta >>> Metazoa >>> Eumetazoa >>> Bilateria >>> Deuterostomia >>> Chordata >>> Craniata >>> Vertebrata >>> Gnathostomata >>> Chondrichthyes >>> Elasmobranchii >>> Selachii >>> Galeomorphii >>> Galeoidea >>> Carcharhiniformes >>> Scyliorhinidae >>> Scyliorhinus >>>