ammonites
banner
Gateway to the Paleobiology Database

Chadronian age/stage

General information
Lower boundary: equal to 37.2 Ma (based on Priabonian)
Upper boundary: equal to 33.9 Ma (based on Priabonian)
Continent: North America
See collections within this interval
See map of collections within this interval
Key correlations
Period: Paleogene
Epoch: Eocene
Subepoch: Late/Upper Eocene
Stage: Priabonian
10 million year bin: Cenozoic 3
Shares base with
Shares top with
Overlaps with
  • Landon (34.3 to 21.7 Ma)
  • Whaingaroan (34.3 to 27.3 Ma)
  • Tinguirirican (36.0 to 29.0 Ma)
  • Divisaderan (42.0 to 36.0 Ma)
  • Arnold (43.0 to 34.3 Ma)
  • Interval name: