| Species of fossils | Time period they lived in | Continents fossils were found in |
| Mesosaurus | 260
mya Permian |
S. Africa, S.America, |
| Glossosteris | 248
mya Permian -Triassic |
India,S. America,S. Africa, Austrialia |
| Lystrosaurus | 240
mya Early Triassic |
Antartica, India, Africa |
| Cynognathus | 245-230
mya Middle Triassic |
S. Africa, Argentina |