ammonites

Lockport age/stage

General information
Lower boundary: after 428.2 Ma (based on Sheinwoodian)
Upper boundary: equal to 422.9 Ma (based on Homerian)
Continent: North America
See collections within this interval
See map of collections within this interval
Key correlations
Period: Silurian
Epoch: Wenlock
10 million year bin: Silurian 2
Contained within
  • Wenlock
  • Silurian
  • Sherman
  • Paleozoic
  • Phanerozoic
    • Previous intervals
  • Llandovery
  • Telychian
  • Woolhope
  • Wych
  • Lower Visby
  • Ontarian
  • Adavere
  • Polaty
  • Syrovaty
    • Next intervals
  • Ludlow
  • Gorstian
  • Bringewood
  • Elton
  • Cayugan
  • Paadla
  • Salina
  • Kuimov
    • Contains
  • Whitwellian
    • Shares base with
  • Buildwas, Hogklint, Jaani, Sheinwoodian, Slite, Upper Visby
    • Shares top with
  • Chagyrka, Gleedonian, Homerian, Litenschichten, Niagaran, Rootsikula, Tickwood, Wenlock (England)
    • Overlaps with
  • Kopaninaschichten (425.4 to 418.7 Ma)
  • Hemse (425.4 to 418.7 Ma)
  • Coalbrookdale (428.2 to 422.9 Ma)
  • Mulde (428.2 to 422.9 Ma)
  • Lockportian (428.2 to 422.9 Ma)
  • Jaagarahu (428.2 to 422.9 Ma)
  • Tonawandan (436.0 to 426.2 Ma)
  • Chesnokovka (436.0 to 426.2 Ma)
  • Clinton (439.0 to 426.2 Ma)
    • Appears in scale
  • North American Silurian Ages (2011)

    • Interval name: