Heterodontosauridae A clade in the dinosaur family tree. The entries below are classified within it. Lanasaurus scalpridens 201.4–192.9 Mya Echinodon 201–174 Mya · Asia Lycorhinus 201–174 Mya · Africa Pegomastax 201–174 Mya · South America Heterodontosaurus 200–190 Mya · Africa Abrictosaurus 199–196 Mya · Africa Manidens 179.17–178.07 Mya · Africa Tianyulong 158.5 Mya · China Fruitadens 150 Mya · Colorado, USA