Urolophidae
This family formerly included the genera "Urobatis" and "Urotrygon" of the Americas , which are presently recognized as forming their own family Urotrygonidae . 
<triplet> Urobatis <subj> Urotrygonidae <obj> parent taxon <triplet> Urotrygon <subj> Urotrygonidae <obj> parent taxon