zamān zamīn — interactive geological time scale

Supereon

Eon Eonothem

Era Erathem

Period System

Epoch Series

Age Stage

Age ago

Rendering 4.6 billion years…

Click an interval for details · double-click or use the slider to zoom

Geological time intervals

Precambrian — Supereon, 4567–538.8 Ma

Phanerozoic — Eon, 538.8–0 Ma

Proterozoic — Eon, 2500–538.8 Ma

Archean — Eon, 4031–2500 Ma

Hadean — Eon, 4567–4031 Ma

Cenozoic — Era, 66–0 Ma

Mesozoic — Era, 251.902–66 Ma

Paleozoic — Era, 538.8–251.902 Ma

Neoproterozoic — Era, 1000–538.8 Ma

Mesoproterozoic — Era, 1600–1000 Ma

Paleoproterozoic — Era, 2500–1600 Ma

Neoarchean — Era, 2800–2500 Ma

Mesoarchean — Era, 3200–2800 Ma

Paleoarchean — Era, 3600–3200 Ma

Eoarchean — Era, 4031–3600 Ma

Quaternary — Period, 2.58–0 Ma

Neogene — Period, 23.04–2.58 Ma

Paleogene — Period, 66–23.04 Ma

Cretaceous — Period, 143.1–66 Ma

Jurassic — Period, 201.4–143.1 Ma

Triassic — Period, 251.902–201.4 Ma

Permian — Period, 298.9–251.902 Ma

Carboniferous — Period, 358.86–298.9 Ma

Devonian — Period, 419.62–358.86 Ma

Silurian — Period, 443.1–419.62 Ma

Ordovician — Period, 486.85–443.1 Ma

Cambrian — Period, 538.8–486.85 Ma

Ediacaran — Period, 635–538.8 Ma

Cryogenian — Period, 720–635 Ma

Tonian — Period, 1000–720 Ma

Stenian — Period, 1200–1000 Ma

Ectasian — Period, 1400–1200 Ma

Calymmian — Period, 1600–1400 Ma

Statherian — Period, 1800–1600 Ma

Orosirian — Period, 2050–1800 Ma

Rhyacian — Period, 2300–2050 Ma

Siderian — Period, 2500–2300 Ma

Pennsylvanian — Subperiod, 323.4–298.9 Ma

Mississippian — Subperiod, 358.86–323.4 Ma

Holocene — Epoch, 0.0117–0 Ma

Pleistocene — Epoch, 2.58–0.0117 Ma

Pliocene — Epoch, 5.333–2.58 Ma

Miocene — Epoch, 23.04–5.333 Ma

Oligocene — Epoch, 33.9–23.04 Ma

Eocene — Epoch, 56–33.9 Ma

Paleocene — Epoch, 66–56 Ma

Upper Cretaceous — Epoch, 100.5–66 Ma

Lower Cretaceous — Epoch, 143.1–100.5 Ma

Upper Jurassic — Epoch, 161.5–143.1 Ma

Middle Jurassic — Epoch, 174.7–161.5 Ma

Lower Jurassic — Epoch, 201.4–174.7 Ma

Upper Triassic — Epoch, 237–201.4 Ma

Middle Triassic — Epoch, 247–237 Ma

Lower Triassic — Epoch, 251.902–247 Ma

Lopingian — Epoch, 259.857–251.902 Ma

Guadalupian — Epoch, 274.4–259.857 Ma

Cisuralian — Epoch, 298.9–274.4 Ma

Upper Pennsylvanian — Epoch, 307–298.9 Ma

Middle Pennsylvanian — Epoch, 315.2–307 Ma

Lower Pennsylvanian — Epoch, 323.4–315.2 Ma

Upper Mississippian — Epoch, 330.3–323.4 Ma

Middle Mississippian — Epoch, 346.7–330.3 Ma

Lower Mississippian — Epoch, 358.86–346.7 Ma

Upper Devonian — Epoch, 382.31–358.86 Ma

Middle Devonian — Epoch, 393.47–382.31 Ma

Lower Devonian — Epoch, 419.62–393.47 Ma

Pridoli — Epoch, 422.7–419.62 Ma

Ludlow — Epoch, 426.7–419.62 Ma

Wenlock — Epoch, 432.9–426.7 Ma

Llandovery — Epoch, 443.1–432.9 Ma

Upper Ordovician — Epoch, 458.2–443.1 Ma

Middle Ordovician — Epoch, 471.3–458.2 Ma

Lower Ordovician — Epoch, 486.85–471.3 Ma

Furongian — Epoch, 497–486.85 Ma

Miaolingian — Epoch, 506.5–497 Ma

Cambrian Series 2 — Epoch, 521–506.5 Ma

Terreneuvian — Epoch, 538.8–521 Ma

Meghalayan — Age, 0.0042–0 Ma

Northgrippian — Age, 0.0082–0.0042 Ma

Greenlandian — Age, 0.0117–0.0082 Ma

Upper Pleistocene — Age, 0.129–0.0117 Ma

Chibanian — Age, 0.774–0.129 Ma

Calabrian — Age, 1.8–0.774 Ma

Gelasian — Age, 2.58–1.8 Ma

Piacenzian — Age, 3.6–2.58 Ma

Zanclean — Age, 5.333–3.6 Ma

Messinian — Age, 7.246–5.333 Ma

Tortonian — Age, 11.63–7.246 Ma

Serravallian — Age, 13.82–11.63 Ma

Langhian — Age, 15.98–13.82 Ma

Burdigalian — Age, 20.45–15.98 Ma

Aquitanian — Age, 23.03–20.45 Ma

Chattian — Age, 27.3–23.04 Ma

Rupelian — Age, 33.9–27.3 Ma

Priabonian — Age, 37.71–33.9 Ma

Bartonian — Age, 41.03–37.71 Ma

Lutetian — Age, 48.07–41.03 Ma

Ypresian — Age, 56–48.07 Ma

Thanetian — Age, 59.24–56 Ma

Selandian — Age, 61.66–59.24 Ma

Danian — Age, 66–61.66 Ma

Maastrichtian — Age, 72.2–66 Ma

Campanian — Age, 83.6–72.2 Ma

Santonian — Age, 85.7–83.6 Ma

Coniacian — Age, 89.8–85.7 Ma

Turonian — Age, 93.9–89.8 Ma

Cenomanian — Age, 100.5–93.9 Ma

Albian — Age, 113.2–100.5 Ma

Aptian — Age, 121.4–113.2 Ma

Barremian — Age, 125.77–121.4 Ma

Hauterivian — Age, 132.6–125.77 Ma

Valanginian — Age, 137.05–132.6 Ma

Berriasian — Age, 143.1–137.05 Ma

Tithonian — Age, 149.2–143.1 Ma

Kimmeridgian — Age, 154.8–149.2 Ma

Oxfordian — Age, 161.5–154.8 Ma

Callovian — Age, 165.3–161.5 Ma

Bathonian — Age, 168.2–165.3 Ma

Bajocian — Age, 170.9–168.2 Ma

Aalenian — Age, 174.7–170.9 Ma

Toarcian — Age, 184.2–174.7 Ma

Pliensbachian — Age, 192.9–184.2 Ma

Sinemurian — Age, 199.5–192.9 Ma

Hettangian — Age, 201.4–199.5 Ma

Rhaetian — Age, 205.7–201.4 Ma

Norian — Age, 227.3–205.7 Ma

Carnian — Age, 237–227.3 Ma

Ladinian — Age, 241.464–237 Ma

Anisian — Age, 247–241.464 Ma

Olenekian — Age, 250.8–247 Ma

Induan — Age, 251.902–250.8 Ma

Changhsingian — Age, 254.14–251.902 Ma

Wuchiapingian — Age, 259.857–254.14 Ma

Capitanian — Age, 264.28–259.857 Ma

Wordian — Age, 266.9–264.28 Ma

Roadian — Age, 274.4–266.9 Ma

Kungurian — Age, 283.3–274.4 Ma

Artinskian — Age, 290.1–283.3 Ma

Sakmarian — Age, 293.52–290.1 Ma

Asselian — Age, 298.9–293.52 Ma

Gzhelian — Age, 303.7–298.9 Ma

Kasimovian — Age, 307–303.7 Ma

Moscovian — Age, 315.2–307 Ma

Bashkirian — Age, 323.4–315.2 Ma

Serpukhovian — Age, 330.3–323.4 Ma

Visean — Age, 346.7–330.3 Ma

Tournaisian — Age, 358.86–346.7 Ma

Famennian — Age, 372.15–358.86 Ma

Frasnian — Age, 382.31–372.15 Ma

Givetian — Age, 387.95–382.31 Ma

Eifelian — Age, 393.47–387.95 Ma

Emsian — Age, 410.62–393.47 Ma

Pragian — Age, 413.02–410.62 Ma

Lochkovian — Age, 419.62–413.02 Ma

Pridoli — Age, 422.7–419.62 Ma

Ludfordian — Age, 425–422.7 Ma

Gorstian — Age, 426.7–425 Ma

Homerian — Age, 430.6–426.7 Ma

Sheinwoodian — Age, 432.9–430.6 Ma

Telychian — Age, 438.6–432.9 Ma

Aeronian — Age, 440.5–438.6 Ma

Rhuddanian — Age, 443.1–440.5 Ma

Hirnantian — Age, 445.2–443.1 Ma

Katian — Age, 452.8–445.2 Ma

Sandbian — Age, 458.2–452.8 Ma

Darriwilian — Age, 469.4–458.2 Ma

Dapingian — Age, 471.3–469.4 Ma

Floian — Age, 477.1–471.3 Ma

Tremadocian — Age, 486.85–477.1 Ma

Cambrian Stage 10 — Age, 491–486.85 Ma

Jiangshanian — Age, 494.2–491 Ma

Paibian — Age, 497–494.2 Ma

Guzhangian — Age, 500.5–497 Ma

Drumian — Age, 504.5–500.5 Ma

Wuliuan — Age, 506.5–504.5 Ma

Cambrian Stage 4 — Age, 514.5–506.5 Ma

Cambrian Stage 2 — Age, 529–521 Ma

Cambrian Stage 3 — Age, 521–514.5 Ma

Fortunian — Age, 538.8–529 Ma