Dinotherium
or DINOTHERE, a genus of fossil mammals belonging to the order Proboscidea (Kaup, Huxley, and others), or to the order Cetacea, and the sub-order Sirenia (Blainville, Pictet, Carpenter, Dallas, and others), The D. giganteum, of which the entire skull and lower jaws were found in Miocene sand stein, and were described by Kaup, was apparently larger than the elephant. Its tusks, which projected from the lower jaw, curved downward, and were used by the animal, which was semi-aquatic, to support its head on the shore. It is believed that it had a short, flexible trunk. a