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
Massive cliffs in Zion Canyon consist of Lower Jurassic formations, including (from bottom to top): the Kayenta Formation and the massive Navajo Sandstone
Lias formations at Lyme Regis, UK, known locally as Blue Lias
The Blue Lias is a geological formation in southern, eastern and western England and parts of South Wales, part of the Lias Group. The Blue Lias consists of a sequence of limestone and shale layers, l
Lower Lias sequence exposed at Nash Point, Glamorgan, Wales
Lytes Cary, Somerset, built of Blue Lias with Ham stone dressings around the windows
The holotype of Plesiosaurus dolichodeirus, on display at the Natural History Museum in London