ammonites

Bumbanian age/stage

General information
Lower boundary: equal to 55.8 Ma (based on Ypresian)
Upper boundary: equal to 48.6 Ma (based on Ypresian)
Continent: Asia
See collections within this interval
See map of collections within this interval
Key correlations
Period: Paleogene
Epoch: Eocene
Subepoch: Early/Lower Eocene
Stage: Ypresian
10 million year bin: Cenozoic 2
Contained within
  • Dannevirke
  • Paleogene
  • Tertiary
  • Cenozoic
  • Phanerozoic
    • Previous intervals
  • Paleocene
  • Late/Upper Paleocene
  • Thanetian
  • Clarkforkian
  • Cf3
  • Cf2
  • Cf1
  • Riochican
  • Teurian
  • Gashatan
  • MP 6
  • MP 1 - 5
    • Next intervals
  • Middle Eocene
  • Lutetian
  • Sharamurunian
  • Irdinmanhan
  • Arshantan
  • MP 15
  • MP 14
  • MP 13
  • MP 12
  • MP 11
    • Equivalent to
  • Early/Lower Eocene, Ypresian
    • Contains
  • MP 10, MP 7, MP 8 + 9, Mangaorapan
    • Shares base with
  • Casamayoran, Eocene, Graybullian, Lostcabinian, Lysitean, Sandcouleean, Waipawan, Wasatchian
    • Overlaps with
  • 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)
    • Appears in scale
  • Paleogene Mammal Ages of Asia (1998)

    • Interval name: