Evolution Flashcards
Calendar of Evolution
Jan1 (start Earth), July( O2), Nov 26 (start life), Dec 15-26- (dinosaur), Dec 31 59’18” (last glacier), Dec 31 59’46” ( Christ)
What made up Pangia
Laurasia and Gondwana
what did Laurasia spilt into
North America and Euroasia
what did Gondwana split into and when
South America, Africa, Australia, Antartica –90 million yrs ago
when did Pangia spit
200 million years ago
when did Rodinia form and separate
formed 1.2 billion yrs ago, fragmented 750 million yrs ago, then combined 250 million yrs ago to form Pangia
types of plate tectonics
- Ocean to ocean, 2. Ocean to continence( north and South America), 3. continent to continent ( Himalayan mt.), 4. transform boundary ( California)
how fast are the tectonics plates moving
1” per yr.
when did water appear on earth
? 4.4 billion yrs ago
when did O2 start on earth
? 2.5 billion yrs ago
when did multicellular organisms start on earth
1.2 billion yrs ago
when did more complex organisms start on earth
600 million yrs ago
when were global snow ball on earth
2.5 billion and 630 million yrs ago
when were multiple species in ocean
500 million yrs ago
when was first extinction
500 million yrs ago when Gondwana moves south - 85% extinction
when did land plants form
400 million yrs ago
when did fish come onto land
330 million yrs ago
how does coal form
when plants fall into water with low levels of O2- swampy areas– 300 million yrs ago
when did reptiles form
300 million yrs ago
when did mammals form
200 million yrs ago
when was 2nd extinction
250 million yrs ago– 95% extinction– caused by global warming with Siberian volcanoes and it took 10 million yrs for life to recover
when were dinosaurs
200- 60 million yrs ago
when did North and South America separate from Pangia
North America separated 150 million yrs ago and South America separated 80 million ydrs ago
when did north and South America join
35million yrs ago