cambrian period

16:12

22:40

9:33

1:23:08

10:30

11:58

7:05

21:31

2:04

1:00:51

1:00

41:00

1:33:38

1:26:28

19:06

34:47

5:40

22:06

4:54

8:01

5:37

40:46

4:14

43:15

41:33

1:13:57

40:40

3:47

58:59

35:04

3:52

42:39

42:51

5:09

38:48

39:42

1:15:30

4:37

26:33

9:15

2:51

8:31

4:15

2:08

7:50

3:25

15:02

2:10

34:37

43:35

34:47

15:02

46:28

43:35

3:21

42:01

00:32

43:43

42:24

43:15