ammonites

late Early Hemphillian subage/stage

General information
Lower boundary: after 10.3 Ma (based on Hemphillian)
Upper boundary: before 4.9 Ma (based on Hemphillian)
Continent: North America
See collections within this interval
See map of collections within this interval
Key correlations
Period: Neogene
10 million year bin: Cenozoic 6
Contained within
  • Hemphillian
  • Neogene
  • Tertiary
  • Cenozoic
  • Phanerozoic
    • Previous intervals
  • Clarendonian
  • Late/Upper Clarendonian
  • Early/Lower Clarendonian
    • Next intervals
  • Blancan
  • "Senecan"
  • Rexroadian
  • MN 14
  • Yushean
    • Contains
  • Chasicoan, Huayquerian, Kapitean, MN 10, MN 11, MN 12, Messinian, Turolian
    • Shares top with
  • Baodean, MN 13
    • Overlaps with
  • Wanganui (5.332 to 0.0 Ma)
  • Pliocene (5.332 to 2.588 Ma)
  • Ruscinian (5.332 to 3.2 Ma)
  • Early/Lower Pliocene (5.332 to 3.6 Ma)
  • Zanclean (5.332 to 3.6 Ma)
  • Opoitian (5.332 to 3.6 Ma)
  • Montehermosan (6.8 to 4.0 Ma)
  • Late/Upper Hemphillian (10.3 to 4.9 Ma)
  • early Early Hemphillian (10.3 to 4.9 Ma)
  • Taranaki (10.92 to 5.332 Ma)
  • MN 9 (11.1 to 9.7 Ma)
  • Late/Upper Miocene (11.608 to 5.332 Ma)
  • Tongaporutuan (11.608 to 6.5 Ma)
  • Tortonian (11.608 to 7.246 Ma)
  • Pannonian (11.608 to 7.246 Ma)
  • Vallesian (11.608 to 8.7 Ma)
  • Mayoan (11.8 to 10.0 Ma)
  • Miocene (23.03 to 5.332 Ma)
    • Appears in scale
  • North American Mammal Subages/Zones: Arikareean - Rancholabrean (1987)

    • Interval name: