Palynoplot Geological Timeline

This is the geological timeline used by Palynodata.

This timeline is, consequently, the default timeline used by Palynoplot. However, the program's timeline is held in an ASCII file, and can be changed by the user if different values are required. The representation here does not include all the myriad stages, and some of the older periods in the database. These overlap in complicated ways, so a graphical representation would be excessively complicated, and be beyond the ability of this page to show.

You could, for example, build a timeline file based on the timeline from the geowhen timeline compiled by Robert A. Rhode of U.C. Berkeley.
Ma  
4100
Precambrian Early Archean
Archeozoic
Early
3600
Middle
3100
Late
2923.33
Middle
2600
Proterozoic Early
2000
Middle
1746.67
Late
1600
Late
570
Paleozoic Early Cambrian Early
540
Middle
514
Late
500
Ordovician Early
478.33
Middle
456.67
Late
435
Middle Silurian Early
421.67
Middle
408.33
Late
395
Devonian Early
370
Middle
360
Late
345
Late Carboniferous Early Mississippian
318
Pennsylvanian
314
Middle
289
Late
280
Permian Early
263.33
Middle
246.67
Late
230
Mesozoic Early Triassic Early Werfenian/
Buntsnadstein/
Scythian
223
Middle Muschelkalk
211
Late Carnian
205
Norian
199
Rhaetian
195
Middle Jurassic Early
174
Middle
160
Late
141
Late Cretaceous Early
115.67
Middle
90.33
Late
65
Cenozoic Early Tertiary Early Paleogene Early
54.5
Middle
43.933
Middle
37.5
Late
22.867
Late
22.5
Middle Neogene Early Miocene Early
16.5
Middle
15.6
Middle
11.5
Late
8.7
Late
5
Pliocene Early
3.933
Middle
2.867
Late
1.8
Late Quaternary Early Pleistocene Early
1.203
Middle
1.2
Middle
0.607
Late
0.6
Late
0.01
Holocene
0