ammonites
banner
Gateway to the Paleobiology Database

Arikareean age/stage

General information
Lower boundary: equal to 30.8 Ma (based on Geringian)
Upper boundary: equal to 20.43 Ma (based on Aquitanian)
Continent: North America
See collections within this interval
See map of collections within this interval
Previous interval
Shares base with
Shares top with
Overlaps with
  • Colhuehuapian (21.0 to 17.5 Ma)
  • Pareora (21.7 to 15.9 Ma)
  • Otaian (21.7 to 19.0 Ma)
  • MN 2 (22.4 to 20.0 Ma)
  • Neogene (23.03 to 2.588 Ma)
  • Miocene (23.03 to 5.332 Ma)
  • Early/Lower Miocene (23.03 to 15.97 Ma)
  • Xiejiaan (23.03 to 16.9 Ma)
  • Agenian (23.03 to 20.0 Ma)
  • Oligocene (33.9 to 23.03 Ma)
  • Hsandagolian (33.9 to 23.03 Ma)
  • MP 25 (33.9 to 23.03 Ma)
  • Early/Lower Oligocene (33.9 to 28.4 Ma)
  • Rupelian (33.9 to 28.4 Ma)
  • Kekeamuan (33.9 to 28.4 Ma)
  • MP 24 (33.9 to 28.4 Ma)
  • MP 23 (33.9 to 28.4 Ma)
  • MP 22 (33.9 to 28.4 Ma)
  • MP 21 (33.9 to 28.4 Ma)
  • Landon (34.3 to 21.7 Ma)
  • Whaingaroan (34.3 to 27.3 Ma)
  • Tinguirirican (36.0 to 29.0 Ma)
  • Paleogene (66.043 to 23.03 Ma)
  • Interval name: