Natura - nature actualia - actual entities Mundus Plinius - physical world naturalia - natural bodies ["Animale Regnum" nom. inval. - animal kingdom] see Kingdom Animalia Linnaeus, 1758 [Class "Qvadrupedia" nom. inval.] see Class Mammalia Linnaeus, 1758 [Order "Jumenta" nom. inval.] see Class Mammalia Linnaeus, 1758 [Genus "Equus" nom. inval.] see Genus Eqvus Linnaeus, 1758 ["Asinus" Plinius, nom. inval.]