1. | Therapsids | 2. | Prosimians |
3. | Platyrrhinis | 4. | Sauropsids |
1. | Pelycosaurs | 2. | Synapsids |
3. | Tuataras | 4. | Thecodonts |
1. | Carboniferous | 2. | Jurassic |
3. | Cretaceous | 4. | Tertiary |
1. | Pareiasaurus | 2. | Pelycosaur |
3. | Ichthyosaurus | 4. | Archosaurus |
1. | 50 mya | 2. | 65 mya |
3. | 75 mya | 4. | 90 mya |
I: | Climatic changes killed them |
II: | Most of them evolved into birds |
1. | I only | 2. | II only |
3. | Both I and II | 4. | Neither I nor II |
1. | 15 mya | 2. | 20 mya |
3. | 25 mya | 4. | 30 mya |
1. | Western Africa | 2. | Eastern African grasslands |
3. | South America | 4. | South East Asia |
1. | Homo habilis | 2. | Homo erectus |
3. | Homo ergaster | 4. | Homo neanderthelensis |
1. | Tanzania; 2 | 2. | Java; 1.5 |
3. | Ethiopia; 1.5 | 4. | Australia; 2 |