-
Camberian 570-500 m
Earliest Record of Marine life. Trilobites are dominate -
Ordovican 500-435m
Starfish, Sand Dollors, Sea urchin and sea cucumbers. Invertebrates are dominate, mollusks become abundant, eareliest Fish that are jawless and later, jawed and armored fish. -
Silurian 435-395M
Earliest terrestrial plants and animials -
Devonian 395-345m
armored fish go extinct, but abundance of several spieces of fish -
Carboniferous345m-280m
Aboudant Sharks and amphibians. Large swamps and coal forming forests. earlieast reptilies -
Permian
Extinction of many types of marine animals including trilobites -
Triassic-225m-195m
Earliest Dinosaures, aboudant cycads and conifers -
Jurassic- 195-136m
Earliest birds and mammals abundant dinosuars and ammonties -
cretaceous-136m-65m
Earliest flowering plants cilmax of dinosaurs followed by thier extinction. great decline of brachiopds. Abundance of bony fish -
tertiary- 65m-1.8m
Earliest placeental mammamls, modern mammamls large running mammals -
Quternary- 1.8m- present
Large carnivores humans, masterdons
