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Gateway to the Paleobiology Database

Altonian age/stage

General information
Lower boundary: equal to 19 Ma (see scale)
Upper boundary: equal to 15.9 Ma (see scale)
Continent: New Zealand
See collections within this interval
See map of collections within this interval
Key correlations
Period: Neogene
Epoch: Miocene
10 million year bin: Cenozoic 5
Previous interval
Next intervals
Shares top with
Overlaps with
  • Middle Miocene (15.97 to 11.608 Ma)
  • Astaracian (15.97 to 11.608 Ma)
  • Barstovian (15.97 to 13.6 Ma)
  • late Late Barstovian (15.97 to 13.6 Ma)
  • early Late Barstovian (15.97 to 13.6 Ma)
  • Early/Lower Barstovian (15.97 to 13.6 Ma)
  • Langhian (15.97 to 13.65 Ma)
  • MN 5 (15.97 to 13.65 Ma)
  • Friasian (16.3 to 15.5 Ma)
  • Shanwangian (16.9 to 13.65 Ma)
  • Orleanian (20.0 to 15.97 Ma)
  • MN 3 (20.0 to 16.9 Ma)
  • Burdigalian (20.43 to 15.97 Ma)
  • Hemingfordian (20.43 to 15.97 Ma)
  • Late/Upper Hemingfordian (20.43 to 15.97 Ma)
  • Early/Lower Hemingfordian (20.43 to 15.97 Ma)
  • Colhuehuapian (21.0 to 17.5 Ma)
  • Early/Lower Miocene (23.03 to 15.97 Ma)
  • Xiejiaan (23.03 to 16.9 Ma)
  • Interval name: