ammonites
banner
Gateway to the Paleobiology Database

Wasatchian age/stage

General information
Lower boundary: equal to 55.8 Ma (based on Ypresian)
Upper boundary: equal to 50.3 Ma (see scale)
Continent: North America
See collections within this interval
See map of collections within this interval
Key correlations
Period: Paleogene
Epoch: Eocene
Subepoch: Early/Lower Eocene
Stage: Ypresian
10 million year bin: Cenozoic 2
Overlaps with
  • Mangaorapan (53.0 to 49.5 Ma)
  • Interval name: