Imperium naturæ C. Linnaeus, 1758 - nature Mundus Plinius - physical world naturalia - natural bodies Regnum Animale C. Linnaeus, 1758 - animal kingdom see Kingdom Animalia Linnaeus, 1758 Class Insecta Linnaeus, 1758 - insects Order Aptera Linnaeus, 1758 Genus Phalangium Linnaeus, 1758 1 Phalangium opilio Linnaeus, 1758 2 Phalangium caudatum Linnaeus, 1758 3 Phalangium reniforme Linnaeus, 1758