Systema naturæ - nature
   Universum - universe see [unranked] Mundus Plinius
     naturalia - natural bodies
       Regnum Animale nom. inval. - animal kingdom see Kingdom Animalia Linnaeus, 1758
         Class Quadrupedia nom. inval. - quadrupeds see Class Mammalia Linnaeus, 1758
           Order Pecora nom. inval. see Order Pecora Linnaeus, 1758
             Genus Ovis nom. inval. see Genus Ovis Linnaeus, 1758
               1 Ovis vulgaris nom. inval.
               2 Ovis Arabica nom. inval.
               3 Ovis Africana nom. inval.
               4 Ovis Angolensis nom. inval.