ammonites

Arshantan age/stage

General information
Lower boundary: equal to 48.6 Ma (based on Lutetian)
Upper boundary: before 37.2 Ma (based on Bartonian)
Continent: Asia
See collections within this interval
See map of collections within this interval
Key correlations
Period: Paleogene
Epoch: Eocene
Subepoch: Middle Eocene
Contained within
  • Middle Eocene
  • Eocene
  • Paleogene
  • Tertiary
  • Cenozoic
  • Phanerozoic
    • Previous intervals
  • Early/Lower Eocene
  • Ypresian
  • Bumbanian
  • MP 10
  • MP 8 + 9
  • MP 7
    • Next intervals
  • Late/Upper Eocene
  • Priabonian
  • Chadronian
  • Late/Upper Chadronian
  • Middle Chadronian
  • Early/Lower Chadronian
  • Kaiatan
  • Houldjinian
  • Ergilian
  • Ulangochuian
  • MP 20
  • MP 19
  • MP 18
  • MP 17B
  • MP 17A
    • Contains
  • Early/Lower Uintan, Late/Upper Uintan, Mustersan, Porangan, Uintan
    • Shares base with
  • Lutetian, MP 11, MP 12, MP 13, MP 14, MP 15
    • Shares top with
  • Bartonian, Bortonian, Duchesnean, MP 16
    • Overlaps with
  • Divisaderan (42.0 to 36.0 Ma)
  • Arnold (43.0 to 34.3 Ma)
  • Sharamurunian (48.6 to 37.2 Ma)
  • Irdinmanhan (48.6 to 37.2 Ma)
  • Heretaungan (49.5 to 46.2 Ma)
  • Bridgerian (50.3 to 46.2 Ma)
  • Twinbuttean (50.3 to 46.2 Ma)
  • Blacksforkian (50.3 to 46.2 Ma)
  • Gardnerbuttian (50.3 to 46.2 Ma)
  • Casamayoran (55.8 to 48.0 Ma)
  • Dannevirke (65.5 to 43.0 Ma)
    • Appears in scale
  • Paleogene Mammal Ages of Asia (1998)

    • Interval name: