i1
|
in era; period [geochronology; stratigraphy] ↞ ccx |
i1X
|
geological periods; stratigraphical systems |
i1XX
|
geological epochs; stratigraphical series |
i1XXX
|
geological ages; stratigraphical stages |
i1c
|
Precambrian; >542 Ma |
i1cd
|
Hadean; 4550-4000 Ma |
i1ch
|
Archean; 4000-2500 Ma |
i1cp
|
Proterozoic; 2500-542 Ma |
i1dWy
|
Phanerozoic; 542-0 Ma |
i1d
|
Palaeozoic; 542-251 Ma |
i1dc
|
Cambrian; 542-488 Ma |
i1dd
|
Ordovician; 488-443 Ma |
i1di
|
Silurian; 443-416 Ma |
i1dn
|
Devonian; 416-359 Ma |
i1do
|
Carboniferous; 359-299 Ma |
i1dp
|
Permian; 299-251 Ma |
i1e
|
Mesozoic; 250-65 Ma |
i1ed
|
Triassic; 250-210 Ma |
i1ej
|
Jurassic; 210-140 Ma |
i1er
|
Cretaceous; 140-65 Ma |
i1f
|
Tertiary; 65-1.7 Ma |
i1fbWɭ
|
Paleogene; Palaeogene; Lower Tertiary; 65-23 Ma |
i1fb
|
Paleocene; Palaeocene; 65-56 Ma |
i1fe
|
Eogene; 56-33 Ma |
i1fɭ
|
Oligocene; 33-23 Ma |
i1fmWp
|
Neogene; 23-2.5 Ma |
i1fm
|
Miocene; 23-5.3 Ma |
i1fmg
|
Aquitanian; 23.0-20.4 Ma |
i1fmi
|
Burdigalian; 20.4-15.9 Ma |
i1fmɭ
|
Langhian; 15.9-13.8 |
i1fms
|
Serravallian; 13.8-11.6 |
i1fmt
|
Tortonian; 11.6-7.2 Ma |
i1fmw
|
Messinian; 7.2-5.3 Ma |
i1fp
|
Pliocene; 5.3-2.5 Ma |
i1fpn
|
Zanclean; 5.3-3.6 Ma |
i1fpp
|
Piacenzian; 3.6-2.5 Ma |
i1g
|
Quaternary; 1.7-0.01 Ma |
i1ge
|
Pleistocene; 2.5-0.01 Ma |
i1geg
|
Gelasian; 2.5-1.8 Ma |
i1geɭ
|
Calabrian; 1.8-0.78 Ma |
i1gen
|
Ionian; 0.78-0.12 Ma |
i1get
|
Tarantian; 0.12-0.01 |
i1gh
|
Holocene; 0.01-0 Ma |
Connected classes: |
18 [i1]
|
in age; geological era |
i91 [i1]
|
formed in era |
j13 [i1]
|
formed in era |
m91 [i1]
|
lived in; existed in era [palaeontology] |
n13 [i1]
|
appeared; originated in period |
n134 [i1]
|
extincted in period |
n181 [i1]
|
in era |
w1
|
in historical period; calendar time; epoch ↞ i1gh bbxprsvxw |