2. Evolution of life on Earth
Earth takes shape Earth today
4,500 million years
Evolution of life on Earth as a 24 hour clock
00:00 12:00 24:00
06:00 18:00
3. Evolution of life on Earth
Evolution of life on Earth as a 24 hour clock
00:00 12:00 24:00
06:00 18:00
1 hour = 187.5 million years
1 min = 3.125 million years
1 sec = 52 thousand years
24 hours = 4,500 million years
4. Evolution of life on Earth
00:00 12:00 24:00
06:00 18:00
4am – First life
Single cell microbes
8.30pm – First
plants appear in sea
5. Evolution of life on Earth
20:00 22:00 24:00
21:00 23:00
8.30pm – First
plants appear in sea
8.50pm – First
Ediacaran fauna and
jellyfish appear in sea
6. Evolution of life on Earth
20:00 22:00 24:00
21:00 23:00
9.04pm – Trilobites
appear
7. Evolution of life on Earth
20:00 22:00 24:00
21:00 23:00
9.55pm – First land
plants appear
8. Evolution of life on Earth
20:00 22:00 24:00
21:00 23:00
10.05pm – First land
creatures appear
9. Evolution of life on Earth
20:00 22:00 24:00
21:00 23:00
10.24pm – land covered by trees
– first winged insects appear
10. Evolution of life on Earth
20:00 22:00 24:00
21:00 23:00
10.55pm – Dinosaurs
appear
11. Evolution of life on Earth
23:00 23:30 24:00
23:15 23:45
10.55pm
Dinosaurs appear
11.39pm – Dinosaurs
disappear – mammals
start to appear
11.42pm – Primates
start to appear
12. Evolution of life on Earth
23:56 23:58 24:00
23:57 23:59
23:58:43
Hominids species appears
23:59:18
Homo habilis species
appears
23:59:57
Homo Sapiens Sapiens
species appears
13. Evolution of life on Earth
00:00 12:00 24:00
06:00 18:00
4am – First life
Single cell microbes
8.30pm – First
plants appear in sea
14. Evolution of life on Earth
00:00 12:00 24:00
06:00 18:00
10.05pm – First land
creatures appear
10.55pm Dinosaurs
appear
15. Evolution of life on Earth
00:00 12:00 24:00
06:00 18:00
11.39pm – mammals
start to appear
23:59:57
Homo sapiens sapiens
species appears
16. Evolution of life on Earth
Presentation written by
Andrew Trimble with
reference to:
“A Short History of
Everything” by Bill
Bryson
