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Jurassic

American  
[joo-ras-ik] / dʒʊˈræs ɪk /

adjective

  1. noting or pertaining to a period of the Mesozoic Epoch, occurring from 190 to 140 million years ago and characterized by an abundance of dinosaurs and the advent of birds and mammals.


noun

  1. the Jurassic Period or System.

Jurassic British  
/ dʒʊˈræsɪk /

adjective

  1. of, denoting, or formed in the second period of the Mesozoic era, between the Triassic and Cretaceous periods, lasting for 55 million years during which dinosaurs and ammonites flourished

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. the Jurassic period or rock system

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Jurassic Scientific  
/ j-răsĭk /
  1. 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.

  2. 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