Integrative Levels Classification project ILC2 schedules developing schedules how it works meetings people references
ILC class i1

ILC developing version
Expanded class i1

   ▲  broader class

▽ ⌕         i1       in era; period  [geochronology; stratigraphy]  ← c1x tens of billions years
▽ ⌕         i1X            geological eras
▽ ⌕         i1XX                 geological periods; stratigraphical systems
▽ ⌕         i1XXX                      geological epochs; stratigraphical series
▽ ⌕         i1XXXX                           geological ages; stratigraphical stages
▽ ⌕         i1bWn            Precambrian; >540 Ma
▽ ⌕         i1d            Hadean; 4550-4000 Ma
▽ ⌕         i1hWk            Archean; 4000-2500 Ma
▽ ⌕         i1h            Eoarchean; 4000-3600 Ma
▽ ⌕         i1i            Paleoarchean; 3600-3200 Ma
▽ ⌕         i1j            Mesoarchean; 3200-2800 Ma
▽ ⌕         i1k            Neoarchean; 2800-2500 Ma
▽ ⌕         i1lWn            Proterozoic; 2500-540 Ma
▽ ⌕         i1l            Paleoproterozoic; 2500-1600 Ma
▽ ⌕         i1m            Mesoproterozoic; 1600-1000 Ma
▽ ⌕         i1mc                 Calymmian; 1600-1400 Ma
▽ ⌕         i1mk                 Ectasian; 1400-1200 Ma
▽ ⌕         i1ms                 Stenian; 1200-1000 Ma
▽ ⌕         i1n            Neoproterozoic; 1000-540 Ma
▽ ⌕         i1nn                 Tonian; 1000-720 Ma
▽ ⌕         i1nr                 Cryogenian; 720-635 Ma
▽ ⌕         i1nv                 Ediacaran; 635-540 Ma
▽ ⌕         i1pWy            Phanerozoic; 542-0 Ma
▽ ⌕         i1p            Palaeozoic; 542-251 Ma
▽ ⌕         i1pc                 Cambrian; 542-488 Ma
▽ ⌕         i1pd                 Ordovician; 488-443 Ma
▽ ⌕         i1pi                 Silurian; 443-416 Ma
▽ ⌕         i1pn                 Devonian; 416-359 Ma
▽ ⌕         i1po                 Carboniferous; 359-299 Ma
▽ ⌕         i1pp                 Permian; 299-251 Ma
▽ ⌕         i1s            Mesozoic; 250-65 Ma
▽ ⌕         i1sd                 Triassic; 250-210 Ma
▽ ⌕         i1sj                 Jurassic; 210-140 Ma
▽ ⌕         i1sr                 Cretaceous; 140-65 Ma
▽ ⌕         i1t            Tertiary; 65-1.7 Ma
▽ ⌕         i1tbWl                 Paleogene; Palaeogene; Lower Tertiary; 65-23 Ma
▽ ⌕         i1tb                 Paleocene; Palaeocene; 65-56 Ma
▽ ⌕         i1te                 Eocene; 56-33 Ma
▽ ⌕         i1tl                 Oligocene; 33-23 Ma
▽ ⌕         i1tmWp                 Neogene; 23-2.5 Ma
▽ ⌕         i1tm                 Miocene; 23-5.3 Ma
▽ ⌕         i1tmg                      Aquitanian; 23.0-20.4 Ma
▽ ⌕         i1tmi                      Burdigalian; 20.4-15.9 Ma
▽ ⌕         i1tml                      Langhian; 15.9-13.8
▽ ⌕         i1tms                      Serravallian; 13.8-11.6
▽ ⌕         i1tmt                      Tortonian; 11.6-7.2 Ma
▽ ⌕         i1tmw                      Messinian; 7.2-5.3 Ma
▽ ⌕         i1tp                 Pliocene; 5.3-2.5 Ma
▽ ⌕         i1tpn                      Zanclean; 5.3-3.6 Ma
▽ ⌕         i1tpp                      Piacenzian; 3.6-2.5 Ma
▽ ⌕         i1u            Quaternary; 1.7-0.01 Ma
▽ ⌕         i1ue                 Pleistocene; 2.5-0.01 Ma
▽ ⌕         i1ueg                      Gelasian; 2.5-1.8 Ma
▽ ⌕         i1uel                      Calabrian; 1.8-0.78 Ma
▽ ⌕         i1uen                      Ionian; 0.78-0.12 Ma
▽ ⌕         i1uet                      Tarantian; 0.12-0.01
▽ ⌕         i1uh                 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  ← i1uh bbxprsvxw 

specificity 
current: 99 

   
Move to another main class:
a b c d e f g h i j k l m n o p q r s t u v w x y

or

or insert a term and do a new

ILC developing version — ISKO Italia <https://www.iskoi.org/ilc/> : 2006.03.06 - 2026.05.14 -