-
34- new invertebrates
11-nearly half of the valuable mineral deposit -
Geological Timescale
-
23- shelled brachipods
22- trilobites appear -
30- fish did not have jaws or teeth and their bodies were covered with bony plates
1- very little plant life -
24- sea stars and coral become more common
33- scorpion begin to evolve -
2- swamps and forest cover the land
4- giant cockroaches appear -
31- huge plants begin to develop, early amphibians form
37- fish that can breathe out of the water -
38- trilobites and eurypterids as the seas retreat
8- appalachian mountain are created because of the collision of tectonic plates and savannah form -
16-welcome to the world of the dinosaur
29-small rodents evolve -
3- flying reptiles called pterosaurs are in the air now
13- carnivores and herbivores have arrived. -
5- first flowering plants appear
35- dinosaurs mass extinction -
7- polluted the oceans and altered the atmosphere
32- antaric icecaps begin to form -
12- first primates evolve
17- flying squirrels,whale, bats appear -
12- first primates evolve
17- flying squirrels,bats, whales appear
same as paleocene -
6- himalays develop due to uplifting
26- first modern horses appear -
6- subcontinent and eurasian contents colliding
27- many early mammal become extinct -
18- various species
26- modern horses -
20- dire wolf and giant ground sloth
9- modern humans -
19- great lakes formed
28- used tools made of bronze and iron -
10- covered much of earth during intervals
14- argument as to when this begin
