Dismilus is the ancestor of all the other Dismilans. There were five species, D. progentor, D. indus, D. decca, (died out) D. survivor, and D. africana, the largest. Sizes were: D. progentor: 5 inches; D. Indus: 8 inches; D. decca: 6 inches; D. survivor: 7 inches; D. africana: 10 inches. They took any prey they could catch. D. africana is the immediate ancestor of Afrocanis and Afromustella.