These giant pig-like artiodactyls lived during Oligocene and early
Miocene time and were distinguished by a long heavy skull that held a
relatively small brain. The face was marked by large knobs which were
located beneath the eyes and on the underside of the lower jaw, and
although these knob-like structures were blunt they had the appearance
of short horns. Certain of these giant swine attained a height of 6 feet
at the shoulders and had skulls that measured 3 feet in length (Pl. 46).
Entelodont remains have been found in the Miocene of the Texas Coastal
Plain.