prehistoric [Adjective] + period [Noun]

Strength Strength Dispersion
A:
12
CHISQ:
123.05
AWT:
17,303,806
TTEST:
3.18
G2:
43.24
FAWT:
3.14
MI:
3.6
LOGLOG:
12.91
JD:
0.48
MI3:
10.77
DICE:
0.08
RANGE: