Age

Kubwa-1

Mbawa-1

Pomboo-1

Simba-1

Average

Paleogene

0.51

0.94

1.01

0.78

0.81

Late Cretaceous

0.38

1.13

1.38

1.04

0.98

Early Cretaceous

0.43

Average

0.45

1.04

1.20

0.91

0.89