Middle Jurassic

Also known as Middle Jurassic Epoch, Mid Jurassic, Middle Jurassic Series

second series and epoch of the Jurassic system and period

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Commons category: Middle Jurassic
start time: 174100000-
end time: 163500000-
sRGB color hex triplet: 34D1EB

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Subdivision of the Jurassic according to the ICS, as of 2024. Vertical axis scale: Millions of years ago

Etymology Name formalityFormal Usage information Celestial bodyEarth Regional usageGlobal (ICS) Time scale(s) usedICS Time Scale Definition Chronological unitEpoch Stratigraphic unitSeries Time span formalityFormal Lower boundary definitionFAD of the Ammonites Leioceras opalinum and Leioceras lineatum Lower boundary GSSPFuentelsaz, Spain 41°10′15″N 1°50′00″W / 41.1708°N 1.8333°W / 41.1708; -1.8333 Lower GSSP ratified2000 Upper boundary definitionNot formally defined Upper boundary definition candidatesHorizon of Ammonite Cardioceras redcliffense. Upper boundary GSSP candidate section(s) Redcliff Point, Dorset, UK