History Of the Cushing Formation

Quaternary Period

28,000 B.C. - 10,000 B.C.

Jurassic Period

200,000,000 B.C.
200,000,000 B.C. - 190,000,000 B.C.

Permian Period

280,000,000 B.C.
250,000,000 B.C.

Carboniferous Period

350,000,000 B.C.

Devonian Period

405,000,000 B.C. - 365,000,000 B.C.
400,000,000 B.C. - 360,000,000 B.C.

Ordovician Period

490,000,000 B.C.
471,000,000 B.C.

Present Day

1791