ammonites

Casamayoran age/stage

General information
Lower boundary: equal to 55.8 Ma (based on Ypresian)
Upper boundary: equal to 48 Ma (see scale)
Continent: South America
See collections within this interval
See map of collections within this interval
Key correlations
Period: Paleogene
Epoch: Eocene
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 interval
  • Mustersan
    • Contains
  • Mangaorapan
    • Shares base with
  • Bumbanian, Early/Lower Eocene, Eocene, Graybullian, Lostcabinian, Lysitean, MP 10, MP 7, MP 8 + 9, Sandcouleean, Waipawan, Wasatchian, Ypresian
    • Overlaps with
  • Middle Eocene (48.6 to 37.2 Ma)
  • Sharamurunian (48.6 to 37.2 Ma)
  • Irdinmanhan (48.6 to 37.2 Ma)
  • Arshantan (48.6 to 37.2 Ma)
  • Lutetian (48.6 to 40.4 Ma)
  • MP 15 (48.6 to 40.4 Ma)
  • MP 14 (48.6 to 40.4 Ma)
  • MP 13 (48.6 to 40.4 Ma)
  • MP 12 (48.6 to 40.4 Ma)
  • MP 11 (48.6 to 40.4 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)
    • Appears in scale
  • South American Land Mammal Ages (1995)

    • Interval name: