I: | is the subfield of biology that studies the evolutionary processes (natural selection, common descent, speciation) that produced the diversity of life on Earth. |
II: | is also defined as the study of the history of life forms on Earth. |
1. | Carboniferous | 2. | Triassic |
3. | Jurassic | 4. | Cretaceous |
1. | Bryophytes and Ferns | 2. | Gymnosperms |
3. | Monocots | 4. | Dicots |
1. | Carboniferous | 2. | Jurassic |
3. | Cretaceous | 4. | Tertiary |
1. | Chlorophyte ancestors | 2. | Tracheophyte ancestors |
3. | Rhynia-type plants | 4. | Psilophytons |
1. | 200 mya | 2. | 300 mya |
3. | 400 mya | 4. | 500 mya |
1. | 500 mya | 2. | 350 mya |
3. | 320 mya | 4. | 300 mya |
1. | 500 mya | 2. | 350 mya |
3. | 320 mya | 4. | 300 mya |
1. | 500 mya | 2. | 350 mya |
3. | 320 mya | 4. | 300 mya |
1. | Seymouria | 2. | Peripatus |
3. | Cartilaginous fishes | 4. | Coelocanths [lobe-finned fishes] |