ammonites

Llandovery epoch

General information
Lower boundary: equal to 443.7 Ma (based on Rhuddanian)
Upper boundary: equal to 428.2 Ma (based on Telychian)
Continent: global
See collections within this interval
See map of collections within this interval
Key correlations
Period: Silurian
10 million year bin: Silurian 1
Contained within
  • Sherman
  • Paleozoic
  • Phanerozoic
    • Previous intervals
  • Ordovician
  • Late/Upper Ordovician
  • Ashgill
  • Hirnantian
  • Kosov
  • Porkuni
  • Gamach
  • Cincinnatian
  • Gamachian
  • Richmondian
  • Harju
  • Kosovian
  • Bolindian
  • Qiantianjiang
  • Aijiashan
  • Wufeng
  • Xiaoxita
  • Shikou
  • Chientangkiangian
  • Ashgillian
  • late Late Ordovician
    • Next intervals
  • Wenlock
  • Sheinwoodian
  • Coalbrookdale
  • Buildwas
  • Mulde
  • Slite
  • Hogklint
  • Upper Visby
  • Lockportian
  • Jaagarahu
  • Jaani
  • Lockport
    • Contains
  • Aeronian
    • Shares base with
  • Alexandrian, Cowleigh Park, Juuru, Litenschichten, Medina, Niagaran, Raikkula, Rhuddanian, Silurian, Vtorye Utesy
    • Shares top with
  • Adavere, Lower Visby, Ontarian, Polaty, Syrovaty, Telychian, Woolhope, Wych
    • Overlaps with
  • Tonawandan (436.0 to 426.2 Ma)
  • Chesnokovka (436.0 to 426.2 Ma)
  • Clinton (439.0 to 426.2 Ma)
    • Appears in scales
  • Silurian Epochs (2011)
  • Gradstein 5: Epochs (2004)
  • Harland 4: Epochs (1990)

    • Interval name: