Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
14 Cards in this Set
- Front
- Back
- 3rd side (hint)
|
Quaternary
|
(Cenozoic) Major Glaciers in north american and europe form 1.5 mill
|
1.6- present
|
|
|
Tertiary
|
(Cenozoic) Rocky mountains and individual continents take shape (65)
|
1.6-65
|
|
|
Cretaceous
|
(Mesozoic)Dinosaurs extinct(65). Western interiro seway and marine reptiles(65-144)
|
65- 146
|
|
|
Jurassic
|
(Mesozoic) Pagnea starts to break up to continents
|
208-146
|
|
|
Triassic
|
(Mesozoic)First mammals and dinosaurs
|
20-245
|
|
|
Permian
|
(Paleozoic)greatest extinction on the earth(245)
|
245- 290
|
|
|
pennsylvanian
|
(Paleozoic) First reptiles
|
290-322
|
|
|
Mississippian
|
(Paleozoic) Coal-forming forests
|
322-363
|
|
|
Devonian
|
(Paleozoic) first land animals and first forests(408)
|
408-363
|
|
|
Siluraian
|
(Paleozoic) Life invades land
|
408-439
|
|
|
Ordovician
|
(Paleozoic) First fish
|
439-510
|
|
|
Cambrian
|
(Paleozoic) Great diversity of marine invertebrates
|
510-545
|
|
|
Proterozoic
|
(Precambrian) Marine fossil invertebrates(600)
|
545-2500
|
|
|
Archean
|
(Precambrian) Earliest fossils recorded. Earliest rocks
|
|
