ammonites

Middle Berriasian subage/stage

General information
Lower boundary: after 145.5 Ma (based on Taitai)
Upper boundary: before 140.2 Ma (based on Berriasian)
Continent: global
See collections within this interval
See map of collections within this interval
Key correlations
Period: Cretaceous
Epoch: Early/Lower Cretaceous
Stage: Berriasian
10 million year bin: Cretaceous 1
Contained within
  • Berriasian
  • Mesozoic
  • Sherman
  • Phanerozoic
    • Previous intervals
  • Jurassic
  • Late/Upper Jurassic
  • Tithonian
  • Late/Upper Tithonian
  • Middle Tithonian
  • Early/Lower Tithonian
  • Oteke
  • Puaroan
    • Next intervals
  • Valanginian
  • Late/Upper Valanginian
  • Early/Lower Valanginian
    • Shares base with
  • Cretaceous, Early/Lower Cretaceous, Neocomian, Taitai
    • Overlaps with
  • Late/Upper Berriasian (145.5 to 140.2 Ma)
  • Early/Lower Berriasian (145.5 to 140.2 Ma)
    • Appears in scale
  • Gradstein et al. 1995 Mesozoic Substages (1995)

    • Interval name: