Imperium naturae C. Linnaeus, 1758 - nature Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758 Class Aves Linnaeus, 1758 - birds see Subclass Aves Linnaeus, 1758 Order Grallae Linnaeus, 1758 Genus Palamedea Linnaeus, 1766 see Genus Anhima Brisson, 1760