Earth Era Notes

1. Geologic Timeline
*Write things
that are in
black for our
notes.
3R

2. Put the following in order from oldest to most
recent
•First birds
• 1.Earth’s formation
•3.First fish
•First mammals
•First land plants
•9.First humans
•First reptiles
•First insects
•2.`First living organism (single cell).

3. Put the following in order from oldest to most
recent
•First birds
• 1. Earth’s formation
•First fish
•First mammals
•First land plants
•9. First humans
•First reptiles
•First insects
•2. First living organism (single cell)

4. Glue onto the LEFT side of 3r
Geologic Timeline
3L 3R

5. Earth’s Eras
• Precambrian (oldest)
• Paleozoic
•Mesozoic
•Cenozoic (now)

6. Precambrian
Precambrian
4,600 mya Earth was formed

7. Precambrian
Precambrian
Earth was formed

8. Precambrian
Precambrian
rise in oxygen in atmosphere
First living organism (single cell)
Earth was formed

9. Paleozoic
Precambrian Paleozoic

10. Paleozoic
Precambrian Paleozoic
• 400 mya first insects
• 530 mya first fish
• 300 mya first reptiles
• 450 mya first land plants

11. Paleozoic
Precambrian Paleozoic
• 400 mya first insects
• 530 mya first fish
• 300 mya first reptiles
• 450 mya first land plants
 first fish

12. Paleozoic
Precambrian Paleozoic
• 400 mya first insects
• 530 mya first fish
• 300 mya first reptiles
• 450 mya first land plants
 first land plants

13. Paleozoic
Precambrian Paleozoic
• 400 mya first insects
• 530 mya first fish
• 300 mya first reptiles
• 450 mya first land plants
 first insects

14. Paleozoic
Precambrian Paleozoic
• 400 mya first insects
• 530 mya first fish
• 300 mya first reptiles
• 450 mya first land plants
 first reptiles

15. Mesozoic
Precambrian Paleozoic Mesozoic

16. Mesozoic
Precambrian Paleozoic Mesozoic
• 130 mya first flower
• 200 mya first mammals
• 150 mya first bird

17. Mesozoic
Precambrian Paleozoic Mesozoic
• 130 mya first flower
• 200 mya first mammals
• 150 mya first bird  First mammal

18. Mesozoic
Precambrian Paleozoic Mesozoic
• 130 mya first flower
• 200 mya first mammals
• 150 mya first bird
First bird

19. Mesozoic
Precambrian Paleozoic Mesozoic
• 130 mya first flower
• 200 mya first mammals
• 150 mya first bird
 first flower

20. Cenozoic
Precambrian Paleozoic Mesozoic Cenozoic

21. Cenozoic
Precambrian Paleozoic Mesozoic Cenozoic
• 0.2 mya first homosapien
• 60 mya first primates

22. Cenozoic
Precambrian Paleozoic Mesozoic Cenozoic
• 0.2 mya first homosapien
• 60 mya first primates
 first primates

23. Cenozoic
Precambrian Paleozoic Mesozoic Cenozoic
• 0.2 mya first homosapien
• 60 mya first primates
 first homosapien

24. Geologic Timeline
Precambrian
First homosapien
First primate
First flower
First bird
First mammal
First reptile
First insect
First land plant
rise in oxygen in atmosphere
First living organism (single cell)
Earth was formed
Paleozoic Mesozoic Cenozoic
First fish