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Geological intervals

Versioned eons, eras, periods, epochs and ages from the International Chronostratigraphic Chart 2026/06.

Entries165
Dataset version2026.09-static-v5-rc146
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  1. Hadeaneon · 4567–4031 Ma
  2. Archeaneon · 4031–2500 Ma
  3. Proterozoiceon · 2500–538.8 Ma
  4. Phanerozoiceon · 538.8–0 Ma
  5. Eoarcheanera · 4031–3600 Ma
  6. Paleoarcheanera · 3600–3200 Ma
  7. Mesoarcheanera · 3200–2800 Ma
  8. Neoarcheanera · 2800–2500 Ma
  9. Paleoproterozoicera · 2500–1600 Ma
  10. Mesoproterozoicera · 1600–1000 Ma
  11. Neoproterozoicera · 1000–538.8 Ma
  12. Paleozoicera · 538.8–251.902 Ma
  13. Mesozoicera · 251.902–66 Ma
  14. Cenozoicera · 66–0 Ma
  15. Cambrianperiod · 538.8–486.85 Ma
  16. Ordovicianperiod · 486.85–443.1 Ma
  17. Silurianperiod · 443.1–419.62 Ma
  18. Devonianperiod · 419.62–358.86 Ma
  19. Carboniferousperiod · 358.86–298.9 Ma
  20. Permianperiod · 298.9–251.902 Ma
  21. Triassicperiod · 251.902–201.4 Ma
  22. Jurassicperiod · 201.4–143.1 Ma
  23. Cretaceousperiod · 143.1–66 Ma
  24. Paleogeneperiod · 66–23.04 Ma
  25. Neogeneperiod · 23.04–2.58 Ma
  26. Quaternaryperiod · 2.58–0 Ma
  27. Terreneuvianepoch · 538.8–521 Ma
  28. Series 2epoch · 521–506.5 Ma
  29. Miaolingianepoch · 506.5–497 Ma
  30. Furongianepoch · 497–486.85 Ma
  31. Lower Ordovicianepoch · 486.85–471.3 Ma
  32. Middle Ordovicianepoch · 471.3–458.2 Ma
  33. Upper Ordovicianepoch · 458.2–443.1 Ma
  34. Llandoveryepoch · 443.1–432.9 Ma
  35. Wenlockepoch · 432.9–426.7 Ma
  36. Ludlowepoch · 426.7–422.7 Ma
  37. Pridoliepoch · 422.7–419.62 Ma
  38. Lower Devonianepoch · 419.62–393.47 Ma
  39. Middle Devonianepoch · 393.47–382.31 Ma
  40. Upper Devonianepoch · 382.31–358.86 Ma
  41. Lower Mississippianepoch · 358.86–346.7 Ma
  42. Middle Mississippianepoch · 346.7–330.3 Ma
  43. Upper Mississippianepoch · 330.3–323.4 Ma
  44. Lower Pennsylvanianepoch · 323.4–315.2 Ma
  45. Middle Pennsylvanianepoch · 315.2–307 Ma
  46. Upper Pennsylvanianepoch · 307–298.9 Ma
  47. Cisuralianepoch · 298.9–274.4 Ma
  48. Guadalupianepoch · 274.4–259.857 Ma
  49. Lopingianepoch · 259.857–251.902 Ma
  50. Lower Triassicepoch · 251.902–247 Ma
  51. Middle Triassicepoch · 247–237 Ma
  52. Upper Triassicepoch · 237–201.4 Ma
  53. Lower Jurassicepoch · 201.4–174.7 Ma
  54. Middle Jurassicepoch · 174.7–161.5 Ma
  55. Upper Jurassicepoch · 161.5–143.1 Ma
  56. Lower Cretaceousepoch · 143.1–100.5 Ma
  57. Upper Cretaceousepoch · 100.5–66 Ma
  58. Paleoceneepoch · 66–56 Ma
  59. Eoceneepoch · 56–33.9 Ma
  60. Oligoceneepoch · 33.9–23.04 Ma
  61. Mioceneepoch · 23.04–5.333 Ma
  62. Plioceneepoch · 5.333–2.58 Ma
  63. Pleistoceneepoch · 2.58–0.0117 Ma
  64. Holoceneepoch · 0.0117–0 Ma
  65. Fortunianage · 538.8–529 Ma
  66. Stage 2age · 529–521 Ma
  67. Stage 3age · 521–514.5 Ma
  68. Stage 4age · 514.5–506.5 Ma
  69. Wuliuanage · 506.5–504.5 Ma
  70. Drumianage · 504.5–500.5 Ma
  71. Guzhangianage · 500.5–497 Ma
  72. Paibianage · 497–494.2 Ma
  73. Jiangshanianage · 494.2–491 Ma
  74. Stage 10age · 491–486.85 Ma
  75. Tremadocianage · 486.85–477.1 Ma
  76. Floianage · 477.1–471.3 Ma
  77. Dapingianage · 471.3–469.4 Ma
  78. Darriwilianage · 469.4–458.2 Ma
  79. Sandbianage · 458.2–452.8 Ma
  80. Katianage · 452.8–445.2 Ma
  81. Hirnantianage · 445.2–443.1 Ma
  82. Rhuddanianage · 443.1–440.5 Ma
  83. Aeronianage · 440.5–438.6 Ma
  84. Telychianage · 438.6–432.9 Ma
  85. Sheinwoodianage · 432.9–430.6 Ma
  86. Homerianage · 430.6–426.7 Ma
  87. Gorstianage · 426.7–425 Ma
  88. Ludfordianage · 425–422.7 Ma
  89. Lochkovianage · 419.62–413.02 Ma
  90. Pragianage · 413.02–410.62 Ma
  91. Emsianage · 410.62–393.47 Ma
  92. Eifelianage · 393.47–387.95 Ma
  93. Givetianage · 387.95–382.31 Ma
  94. Frasnianage · 382.31–372.15 Ma
  95. Famennianage · 372.15–358.86 Ma
  96. Tournaisianage · 358.86–346.7 Ma
  97. Viseanage · 346.7–330.3 Ma
  98. Serpukhovianage · 330.3–323.4 Ma
  99. Bashkirianage · 323.4–315.2 Ma
  100. Moscovianage · 315.2–307 Ma
  101. Kasimovianage · 307–303.7 Ma
  102. Gzhelianage · 303.7–298.9 Ma
  103. Asselianage · 298.9–293.52 Ma
  104. Sakmarianage · 293.52–290.1 Ma
  105. Artinskianage · 290.1–283.3 Ma
  106. Kungurianage · 283.3–274.4 Ma
  107. Roadianage · 274.4–266.9 Ma
  108. Wordianage · 266.9–264.28 Ma
  109. Capitanianage · 264.28–259.857 Ma
  110. Wuchiapingianage · 259.857–254.14 Ma
  111. Changhsingianage · 254.14–251.902 Ma
  112. Induanage · 251.902–250.8 Ma
  113. Olenekianage · 250.8–247 Ma
  114. Anisianage · 247–241.464 Ma
  115. Ladinianage · 241.464–237 Ma
  116. Carnianage · 237–227.3 Ma
  117. Norianage · 227.3–205.7 Ma
  118. Rhaetianage · 205.7–201.4 Ma
  119. Hettangianage · 201.4–199.5 Ma
  120. Sinemurianage · 199.5–192.9 Ma
  121. Pliensbachianage · 192.9–184.2 Ma
  122. Toarcianage · 184.2–174.7 Ma
  123. Aalenianage · 174.7–170.9 Ma
  124. Bajocianage · 170.9–168.2 Ma
  125. Bathonianage · 168.2–165.3 Ma
  126. Callovianage · 165.3–161.5 Ma
  127. Oxfordianage · 161.5–154.8 Ma
  128. Kimmeridgianage · 154.8–149.2 Ma
  129. Tithonianage · 149.2–143.1 Ma
  130. Berriasianage · 143.1–137.05 Ma
  131. Valanginianage · 137.05–132.6 Ma
  132. Hauterivianage · 132.6–125.77 Ma
  133. Barremianage · 125.77–121.4 Ma
  134. Aptianage · 121.4–113.2 Ma
  135. Albianage · 113.2–100.5 Ma
  136. Cenomanianage · 100.5–93.9 Ma
  137. Turonianage · 93.9–89.8 Ma
  138. Coniacianage · 89.8–85.7 Ma
  139. Santonianage · 85.7–83.6 Ma
  140. Campanianage · 83.6–72.2 Ma
  141. Maastrichtianage · 72.2–66 Ma
  142. Danianage · 66–61.66 Ma
  143. Selandianage · 61.66–59.24 Ma
  144. Thanetianage · 59.24–56 Ma
  145. Ypresianage · 56–48.07 Ma
  146. Lutetianage · 48.07–41.03 Ma
  147. Bartonianage · 41.03–37.71 Ma
  148. Priabonianage · 37.71–33.9 Ma
  149. Rupelianage · 33.9–27.3 Ma
  150. Chattianage · 27.3–23.04 Ma
  151. Aquitanianage · 23.04–20.45 Ma
  152. Burdigalianage · 20.45–15.98 Ma
  153. Langhianage · 15.98–13.82 Ma
  154. Serravallianage · 13.82–11.63 Ma
  155. Tortonianage · 11.63–7.246 Ma
  156. Messinianage · 7.246–5.333 Ma
  157. Zancleanage · 5.333–3.6 Ma
  158. Piacenzianage · 3.6–2.58 Ma
  159. Gelasianage · 2.58–1.8 Ma
  160. Calabrianage · 1.8–0.774 Ma
  161. Chibanianage · 0.774–0.129 Ma
  162. Upper Pleistoceneage · 0.129–0.0117 Ma
  163. Greenlandianage · 0.0117–0.0082 Ma
  164. Northgrippianage · 0.0082–0.0042 Ma
  165. Meghalayanage · 0.0042–0 Ma