Lower Jurassic

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Lower Jurassic

[′lō·ər ju̇′ras·ik]
(geology)
The earliest epoch of the Jurassic period of geologic time, extending from about 185- to 170,000,000 years ago.
References in periodicals archive ?
The well targeted the Early Jurassic Statfjord Group, which was found to be 100m (328ft) thick of which 65m (213ft) was good reservoir quality.
Join Dean Lomax, palaeontologist and world expert on early Jurassic Ichthyosaurs, to find out more about life in the Jurassic seas.
"Ichthyosaurs of this age (Early Jurassic) are usually 'pancaked',' meaning that they are squished so that the original structure of the skull is either not preserved or is distorted or damaged.
Ichthyosaurs of this age (Early Jurassic) are usually 'pancaked', meaning that they are squished so that the original structure of the skull is either not preserved or is distorted or damaged.
They lived for about 100 million years, beginning in the early Jurassic and dying out soon after the advent of the Cretaceous period about 145 million years ago.
For this study, an international team of scientists set out to better understand today's oxygen-deprived oceans by investigating the Toarcian Oceanic Anoxic Event (T-OAE), an interval of global oceanic deoxygenation characterised by a mass extinction of marine organisms that occurred in the Early Jurassic Period.
Herein we revise the taxonomy of Late Triassic and Early Jurassic Necrotauliidae from England.
Two-legged meat-eating dinosaurs from the Early Jurassic era tended to be quite small.
The outstanding Late Pliensbachian [delta][sup.18.O.sub.bel] positive excursion represents one of the most significant palaeoclimatic features of the Early Jurassic, documenting one of the most important cooling intervals of the Mesozoic.
Hung from the ceiling of the same gallery as "Fossil Coca-Cola Bottles," is an untitled wire-and-plaster mobile from 2015, which is described as "Tazoudasaurus Naimi, Dinosaur bone fragments and claw from the Late Early Jurassic Period."
Dilophosaurus was one of the largest carnivores in the early Jurassic

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