Geologic Time Scale Flashcards
(24 cards)
Eons to know (2)
- Phanerozoic
2. Precambrian
Eras to know (3)
- Cenozoic
- Mesozoic
- Paleozoic
Periods to know (7)
- Quaternary
- Cretaceous
- Jurassic
- Triassic
- Permian
- Cambrian
- Ediacaran
Epochs to know (2)
- Holocene
2. Pleistocene
What period is included in the Precambrian Eon?
Ediacaran
What 3 eras are included in the Phanerozoic Eon?
- Cenozoic
- Mesozoic
- Paleozoic
What 2 periods are included in the Paleozoic Era?
- Permian
2. Cambrian
What 3 periods are included in the Mesozoic Era?
- Cretaceous
- Jurassic
- Triassic
What period is included in the Cenozoic Era?
Quaternary
What 2 epochs are included in the Quaternary Period?
- Holocene
2. Pleistocene
What is the main event of:
Mesozoic Era
Dinosaurs
What is the main event of:
Ediacaran Period
Avalon Explosion
What is the main event of:
Cambrian Period
Cambrian Explosion
What is the main event of:
Permian Period
P-T Mass Extinction
What is the main event of:
Jurassic Period
Gymnosperms are dominant
What is the main event of:
Cretaceous Period
K-T Mass Extinction
Also, flowering plants are dominant
What is the main event of:
Holocene Epoch
Evolution of hominins
How many millions of years ago did this begin:
Precambrian Eon
Undefined
How many millions of years ago did this begin:
Ediacaran Period
635 Ma
How many millions of years ago did this begin:
Phanerozoic Eon
Paleozoic Era
Cambrian Period
541 Ma
How many millions of years ago did this begin:
Mesozoic Era
Triassic Period
250 Ma
How many millions of years ago did this begin:
Cenozoic Era
66 Ma
How many millions of years ago did this begin:
Quaternary Period
Pleistocene Epoch
2.6 Ma
How many millions of years ago did this begin:
Holocene Epoch
0.012 Ma (12,000 BP)
