Imperium naturae C. Linnaeus, 1758 - nature Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758 Class Amphibia Linnaeus, 1758 - amphibians see Class Amphibia Gray, 1825 Order Nantes Linnaeus, 1758 Genus Raja Linnaeus, 1758 - skates