Jurassic
Americanadjective
noun
adjective
noun
-
The second and middle period of the Mesozoic Era, from about 208 to 144 million years ago. During this time the supercontinent Pangaea continued to split up and numerous shallow seas inundated the new continents. Dinosaurs were the dominant form of terrestrial animal life, and the earliest birds appeared. Marine life was dominated by ammonites and belemnites, and sponges, corals, bryozoa, and gastropods all flourished. Gymnosperms and cycads were the dominant land plants.
-
See Chart at geologic time
Other Word Forms
- post-Jurassic adjective
Etymology
Origin of Jurassic
First recorded in 1825–35; Jur(a) + -assic, suffix extracted from Triassic; compare French jurassique
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"That's your Jurassic Park moment... one to remember for a lifetime."
From Barron's
A remarkably complete skeleton uncovered along the UK's Jurassic Coast has been identified as a previously unknown species of ichthyosaur -- a group of prehistoric marine reptiles that once dominated the world's oceans.
From Science Daily
Access to a popular beach on Dorset's Jurassic Coast has been closed after storms destroyed part of the steps.
From BBC
So many choose to travel by rail - and this section of line in Dawlish, just along from the Jurassic Coast, holds the key to trains arriving on time, or at all.
From BBC
Using this information, the team reconstructed the Jurassic food web in greater detail than previously achieved for dinosaurs.
From Science Daily
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.