Geological intervals
Versioned eons, eras, periods, epochs and ages from the International Chronostratigraphic Chart 2026/06.
Entries165
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- Hadeaneon · 4567–4031 Ma
- Archeaneon · 4031–2500 Ma
- Proterozoiceon · 2500–538.8 Ma
- Phanerozoiceon · 538.8–0 Ma
- Eoarcheanera · 4031–3600 Ma
- Paleoarcheanera · 3600–3200 Ma
- Mesoarcheanera · 3200–2800 Ma
- Neoarcheanera · 2800–2500 Ma
- Paleoproterozoicera · 2500–1600 Ma
- Mesoproterozoicera · 1600–1000 Ma
- Neoproterozoicera · 1000–538.8 Ma
- Paleozoicera · 538.8–251.902 Ma
- Mesozoicera · 251.902–66 Ma
- Cenozoicera · 66–0 Ma
- Cambrianperiod · 538.8–486.85 Ma
- Ordovicianperiod · 486.85–443.1 Ma
- Silurianperiod · 443.1–419.62 Ma
- Devonianperiod · 419.62–358.86 Ma
- Carboniferousperiod · 358.86–298.9 Ma
- Permianperiod · 298.9–251.902 Ma
- Triassicperiod · 251.902–201.4 Ma
- Jurassicperiod · 201.4–143.1 Ma
- Cretaceousperiod · 143.1–66 Ma
- Paleogeneperiod · 66–23.04 Ma
- Neogeneperiod · 23.04–2.58 Ma
- Quaternaryperiod · 2.58–0 Ma
- Terreneuvianepoch · 538.8–521 Ma
- Series 2epoch · 521–506.5 Ma
- Miaolingianepoch · 506.5–497 Ma
- Furongianepoch · 497–486.85 Ma
- Lower Ordovicianepoch · 486.85–471.3 Ma
- Middle Ordovicianepoch · 471.3–458.2 Ma
- Upper Ordovicianepoch · 458.2–443.1 Ma
- Llandoveryepoch · 443.1–432.9 Ma
- Wenlockepoch · 432.9–426.7 Ma
- Ludlowepoch · 426.7–422.7 Ma
- Pridoliepoch · 422.7–419.62 Ma
- Lower Devonianepoch · 419.62–393.47 Ma
- Middle Devonianepoch · 393.47–382.31 Ma
- Upper Devonianepoch · 382.31–358.86 Ma
- Lower Mississippianepoch · 358.86–346.7 Ma
- Middle Mississippianepoch · 346.7–330.3 Ma
- Upper Mississippianepoch · 330.3–323.4 Ma
- Lower Pennsylvanianepoch · 323.4–315.2 Ma
- Middle Pennsylvanianepoch · 315.2–307 Ma
- Upper Pennsylvanianepoch · 307–298.9 Ma
- Cisuralianepoch · 298.9–274.4 Ma
- Guadalupianepoch · 274.4–259.857 Ma
- Lopingianepoch · 259.857–251.902 Ma
- Lower Triassicepoch · 251.902–247 Ma
- Middle Triassicepoch · 247–237 Ma
- Upper Triassicepoch · 237–201.4 Ma
- Lower Jurassicepoch · 201.4–174.7 Ma
- Middle Jurassicepoch · 174.7–161.5 Ma
- Upper Jurassicepoch · 161.5–143.1 Ma
- Lower Cretaceousepoch · 143.1–100.5 Ma
- Upper Cretaceousepoch · 100.5–66 Ma
- Paleoceneepoch · 66–56 Ma
- Eoceneepoch · 56–33.9 Ma
- Oligoceneepoch · 33.9–23.04 Ma
- Mioceneepoch · 23.04–5.333 Ma
- Plioceneepoch · 5.333–2.58 Ma
- Pleistoceneepoch · 2.58–0.0117 Ma
- Holoceneepoch · 0.0117–0 Ma
- Fortunianage · 538.8–529 Ma
- Stage 2age · 529–521 Ma
- Stage 3age · 521–514.5 Ma
- Stage 4age · 514.5–506.5 Ma
- Wuliuanage · 506.5–504.5 Ma
- Drumianage · 504.5–500.5 Ma
- Guzhangianage · 500.5–497 Ma
- Paibianage · 497–494.2 Ma
- Jiangshanianage · 494.2–491 Ma
- Stage 10age · 491–486.85 Ma
- Tremadocianage · 486.85–477.1 Ma
- Floianage · 477.1–471.3 Ma
- Dapingianage · 471.3–469.4 Ma
- Darriwilianage · 469.4–458.2 Ma
- Sandbianage · 458.2–452.8 Ma
- Katianage · 452.8–445.2 Ma
- Hirnantianage · 445.2–443.1 Ma
- Rhuddanianage · 443.1–440.5 Ma
- Aeronianage · 440.5–438.6 Ma
- Telychianage · 438.6–432.9 Ma
- Sheinwoodianage · 432.9–430.6 Ma
- Homerianage · 430.6–426.7 Ma
- Gorstianage · 426.7–425 Ma
- Ludfordianage · 425–422.7 Ma
- Lochkovianage · 419.62–413.02 Ma
- Pragianage · 413.02–410.62 Ma
- Emsianage · 410.62–393.47 Ma
- Eifelianage · 393.47–387.95 Ma
- Givetianage · 387.95–382.31 Ma
- Frasnianage · 382.31–372.15 Ma
- Famennianage · 372.15–358.86 Ma
- Tournaisianage · 358.86–346.7 Ma
- Viseanage · 346.7–330.3 Ma
- Serpukhovianage · 330.3–323.4 Ma
- Bashkirianage · 323.4–315.2 Ma
- Moscovianage · 315.2–307 Ma
- Kasimovianage · 307–303.7 Ma
- Gzhelianage · 303.7–298.9 Ma
- Asselianage · 298.9–293.52 Ma
- Sakmarianage · 293.52–290.1 Ma
- Artinskianage · 290.1–283.3 Ma
- Kungurianage · 283.3–274.4 Ma
- Roadianage · 274.4–266.9 Ma
- Wordianage · 266.9–264.28 Ma
- Capitanianage · 264.28–259.857 Ma
- Wuchiapingianage · 259.857–254.14 Ma
- Changhsingianage · 254.14–251.902 Ma
- Induanage · 251.902–250.8 Ma
- Olenekianage · 250.8–247 Ma
- Anisianage · 247–241.464 Ma
- Ladinianage · 241.464–237 Ma
- Carnianage · 237–227.3 Ma
- Norianage · 227.3–205.7 Ma
- Rhaetianage · 205.7–201.4 Ma
- Hettangianage · 201.4–199.5 Ma
- Sinemurianage · 199.5–192.9 Ma
- Pliensbachianage · 192.9–184.2 Ma
- Toarcianage · 184.2–174.7 Ma
- Aalenianage · 174.7–170.9 Ma
- Bajocianage · 170.9–168.2 Ma
- Bathonianage · 168.2–165.3 Ma
- Callovianage · 165.3–161.5 Ma
- Oxfordianage · 161.5–154.8 Ma
- Kimmeridgianage · 154.8–149.2 Ma
- Tithonianage · 149.2–143.1 Ma
- Berriasianage · 143.1–137.05 Ma
- Valanginianage · 137.05–132.6 Ma
- Hauterivianage · 132.6–125.77 Ma
- Barremianage · 125.77–121.4 Ma
- Aptianage · 121.4–113.2 Ma
- Albianage · 113.2–100.5 Ma
- Cenomanianage · 100.5–93.9 Ma
- Turonianage · 93.9–89.8 Ma
- Coniacianage · 89.8–85.7 Ma
- Santonianage · 85.7–83.6 Ma
- Campanianage · 83.6–72.2 Ma
- Maastrichtianage · 72.2–66 Ma
- Danianage · 66–61.66 Ma
- Selandianage · 61.66–59.24 Ma
- Thanetianage · 59.24–56 Ma
- Ypresianage · 56–48.07 Ma
- Lutetianage · 48.07–41.03 Ma
- Bartonianage · 41.03–37.71 Ma
- Priabonianage · 37.71–33.9 Ma
- Rupelianage · 33.9–27.3 Ma
- Chattianage · 27.3–23.04 Ma
- Aquitanianage · 23.04–20.45 Ma
- Burdigalianage · 20.45–15.98 Ma
- Langhianage · 15.98–13.82 Ma
- Serravallianage · 13.82–11.63 Ma
- Tortonianage · 11.63–7.246 Ma
- Messinianage · 7.246–5.333 Ma
- Zancleanage · 5.333–3.6 Ma
- Piacenzianage · 3.6–2.58 Ma
- Gelasianage · 2.58–1.8 Ma
- Calabrianage · 1.8–0.774 Ma
- Chibanianage · 0.774–0.129 Ma
- Upper Pleistoceneage · 0.129–0.0117 Ma
- Greenlandianage · 0.0117–0.0082 Ma
- Northgrippianage · 0.0082–0.0042 Ma
- Meghalayanage · 0.0042–0 Ma