-
formation of the earth
4.6 BYA -
intense volcanic activity & formation of earth's crust
4.5 BYA -
cooling, meteorite bombardment & great electrical storms
4.2 BYA -
oceans formed
4 BYA -
FORMATION OF ORGANIC MOLECULES
3.9 BYA -
Coal Age- Warm, Swampy, Primitive Land Plants
305 MYA -
Abundant bacteria
1.8BYA -
Oldest known fossils of eukaryotes
1.7BYA -
Formation of early super continent-Pangaea
1.25BYA -
First Multicelled Animals--Jellyfish
1.2BYA -
Central U.S. in an Ocean (off and on)
1.1BYA -
Coral, Jellyfish, Sponges, and Worms Present in the Sea (Invertebrates)
1BYA -
Breakup of Early Super Continent
580MYA -
Cambrian Explosion of Marine Organisms--Trilobites
570MYA -
Oldest Known Forest with Tall Trees
360 MYA -
OLdest Known Forest With Tall Trees
360 MYA -
Oldest Known Reptiles
350 MYA -
Oldest Known Reptiles
350 MYA -
Giant Ferns and First Seed Plants
310 MYA -
Giant Ferns and First Seed Plants
310 MYA -
Coal Age--Warm, Swampy, Primitive Land Plants
305 MYA -
Super Contintent Pangea 2 Formed
280 MYA -
Super Contintent Panagea II Formed
280 MYA -
Mass Extinction of Sea Creatures - Trilobites
250 MYA -
Mass Extinction of Sea Creatures--Tilobites
250 MYA -
First Dinosaurs and Oldest Known Egg-Laying Mammals
220 MYA -
Continents Separate
210 MYA -
Oldest Known Flowering Plants
130 MYA -
Dinosaur Extinct
65 MYA -
Oldest known primates
60 MYA -
India Collides with Asia producing the Himalayas
50 MYA -
First Birds
180 MYA -
First Monkey-like Primates
35 MYA -
Worldwide Glaciations
1.6 MYA -
Early Humans
1.5 MYA
