Systema naturæ - nature Universum - universe see [unranked] Mundus Plinius naturalia - natural bodies Regnum Animale nom. inval. - animal kingdom see Kingdom Animalia Linnaeus, 1758 Class Aves Plinius, nom. inval. - birds see Class Aves Linnaeus, 1758 Order Picae nom. inval. see Order Picae Linnaeus, 1758 Genus Ispida nom. inval. see Genus Merops Linnaeus, 1758 1 Ispida nom. inval. 2 Merops Plinius, nom. inval.