Early Jurassic
Period
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The Early Jurassic Epoch is the earliest of three epochs of the Jurassic Period. The Early Jurassic starts immediately after the Triassic–Jurassic extinction event, 201.3 Ma, and ends at the start of the Middle Jurassic 174.7 ±0.8 Ma. Wikipedia
Period: Jurassic
Occurred: 201.3 (+/- 0.2) million years ago - 174.1 (+/- 1) million years ago
Ages: Hettangian, Sinemurian, Pliensbachian, and more
Lower boundary GSSP: Kuhjoch section, Karwendel mountains, Northern Calcareous Alps, Austria; 47°29′02″N 11°31′50″E / 47.4839°N 11.5306°E
Lower GSSP ratified: 2010
Upper boundary GSSP: Fuentelsaz, Spain; 41°10′15″N 1°50′00″W / 41.1708°N 1.8333°W