The order Trismila, whose members have three sets of carnassal teeth, did not survive the end of the Cretaceous. There were four members, all of the genus Trismilus: T. decca, T. malagsay, T. megalos, T. minor. T. minor and T. decca avoided competing because T. minor lived on the ground, and T. Decca in the trees. T. malagsay, like T. decca, was about 6 inches long. T. minor was only 4 inches. T. megalos was 9 inches long. All would probably take any prey they could kill.