Geologic Timescale Ages
0.0(0)
Studied by 0 people
Call Kai
Learn
Practice Test
Spaced Repetition
Match
Flashcards
Knowt PlayCard Sorting
1/22
There's no tags or description
Looks like no tags are added yet.
Last updated 8:02 PM on 2/25/25
Name | Mastery | Learn | Test | Matching | Spaced | Call with Kai |
|---|
No analytics yet
Send a link to your students to track their progress
23 Terms
1
New cards
Hadean
4.6 Ga
2
New cards
Eoarchean
4.0 Ga
3
New cards
Paleoarchean
3.8 Ga
4
New cards
Mesoarchean
3.2 Ga
5
New cards
Neoarchean
2.8 Ga
6
New cards
Paleoproterozoic
2.5 Ga
7
New cards
Mesoproterozoic
1.6 Ga
8
New cards
Tonian
1.0 Ga
9
New cards
Cryogenian
720 Ma
10
New cards
Ediacaran
635 Ma
11
New cards
Cambrian
539 Ma
12
New cards
Devonian
419.6 Ma
13
New cards
Triassic
252 Ma
14
New cards
Jurassic
201 Ma
15
New cards
Early Cretaceous
143 Ma
16
New cards
Late Cretaceous
100.5 Ma
17
New cards
Paleocene
66 Ma
18
New cards
Eocene
56 Ma
19
New cards
Oligocene
34 Ma
20
New cards
Miocene
23 Ma
21
New cards
Pliocene
5.3 Ma
22
New cards
Pleistocene
2.58 Ma
23
New cards
Holocene
11,700 yrs
Note 
Flashcards (82)