Geology Timeline LThomp

Main

Origin of the Earth

4,600,000,000 B.C.

Oldest Known Earth Rocks

3,960,000,000 B.C.

First Known Animals

1,200,000,000 B.C.

Early Multicelled Organisms

700,000,000 B.C.

Early trees, formation of coal deposits

318,000,000 B.C.

Final Assembly of Pangea

280,000,000 b.c.

First Dinosaurs

215,000,000 B.C.

Opening of Atlantic Ocean

200,000,000 B.C.

Basalt Dikes Near Coast

200,000,000 b.c.

Igneous Rocks in York Country

100,000,000 B.C.

Present

2010