ammonites
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Gateway to the Paleobiology Database

To1 subage/stage

General information
Lower boundary: equal to 63.3 Ma (based on Torrejonian)
Upper boundary: before 61.7 Ma (based on Danian)
Continent: North America
See collections within this interval
See map of collections within this interval
Key correlations
Period: Paleogene
Epoch: Paleocene
Subepoch: Early/Lower Paleocene
Stage: Danian
10 million year bin: Cenozoic 1
Previous intervals
Overlaps with
  • Peligran (62.5 to 59.0 Ma)
  • To3 (63.3 to 61.7 Ma)
  • To2 (63.3 to 61.7 Ma)
  • Tiupampan (66.043 to 62.5 Ma)
  • Interval name: