Class Mammalia Linnaeus, 1758 - mammals Subclass Theria Parker & Haswell, 1897 Order Hyracoidea Huxley, 1869 - hyraxes Family Procaviidae Thomas, 1892 - hyraxes 1 Genus Dendrohyrax Gray, 1868 - tree hyraxes 2 Genus Heterohyrax Gray, 1868 - gray hyraxes 3 Genus Procavia Storr, 1780 - large-toothed rock hyraxes