Paleontology. Primitive jawed fishes had teeth of their own design.
Stokstad
Erik
E
D000818:Animals; D005075:Biological Evolution; D003817:Dentition; D005399:Fishes / Q000033:anatomy & histology*; D005580:Fossils; D010161:Paleodontology; D014070:Tooth / Q000033:anatomy & histology