Geologic Time Project

Precambrian Time

4,560,000,000 B.C. - 542,000,000 B.C.

Paleozoic Era - Life Diversifies

542,000,000 BC - 488,000,000 BC
488,000,000 BC - 444,000,000 BC
444,000,000 BC - 416,000,000 BC
416,000,000 BC - 359,000,000 BC
359,000,000 BC - 299,000,000 BC
299,000,000 BC - 251,000,000 BC

Mesozoic Era - The Time of Reptiles

251,000,000 BC - 200,000,000 BC
200,000,000 BC - 145,000,000 BC
145,000,000 BC - 65,000,000 BC

Cenozoic Era - Mammals Rise To Prominence

65,000,000 BC - 1,800,000 BC
1,800,000 BC - Present