ammonites

Thouarsense zone

General information
Lower boundary: after 180.1 Ma (based on Crassicosta)
Upper boundary: before 175.6 Ma (based on Herangi)
Continent: Europe
See collections within this interval
See map of collections within this interval
Key correlations
Period: Jurassic
Epoch: Early/Lower Jurassic
Stage: Toarcian
10 million year bin: Jurassic 3
Previous interval
Overlaps with
  • Late/Upper Toarcian (180.1 to 175.6 Ma)
  • Yakounensis (180.1 to 175.6 Ma)
  • Hillebrandti (180.1 to 175.6 Ma)
  • Crassicosta (180.1 to 175.6 Ma)
  • Interval name: