EARTH SCIENCE |
Platte Canyon High
School |
|
|
GEOLOGIC TIME SCALE Triassic after Harland et al., 1982 |
|
========================================================= |
Period | Epoch | Age | Ma age | Comments |
213 | ||||
Triassic | Tr3 | Rhaetian | 219 | |
Norian | 225 | |||
Carnian | 231 | |||
Tr2 | Ladinian | 238 | ||
Ansian | 243 | |||
Scythian Tr1 |
Spathian | |||
Smithian | ||||
Dienerian | ||||
Griesbachian | 248 |