ammonites
banner
Gateway to the Paleobiology Database

Riochican age/stage

General information
Lower boundary: equal to 57 Ma (see scale)
Upper boundary: equal to 55.8 Ma (based on Thanetian)
Continent: South America
See collections within this interval
See map of collections within this interval
Key correlations
Period: Paleogene
Epoch: Paleocene
Subepoch: Late/Upper Paleocene
Stage: Thanetian
10 million year bin: Cenozoic 1
Previous interval
Overlaps with
  • Tiffanian (61.7 to 56.8 Ma)
  • Ti6 (61.7 to 56.8 Ma)
  • Ti5 (61.7 to 56.8 Ma)
  • Ti4 (61.7 to 56.8 Ma)
  • Ti3 (61.7 to 56.8 Ma)
  • Ti2 (61.7 to 56.8 Ma)
  • Ti1 (61.7 to 56.8 Ma)
  • Appears in scale

    Interval name: