Jurassic

geological strata (or Period) formed during the period from 144 million to 205 million years before present;

jurassic

a geologic period spanning 199.6 - 145.5 million years ago
Found on http://www.njwildlifetrails.org/OutontheTrails/GlossaryofNaturerelatedTerms

Jurassic

The Jurassic (k; from Jura Mountains of the Alps) is a geologic period and system that extends from {period start}{period start error} Ma (million years ago) to {period end}{period end error} Ma; from the end of the Triassic to the beginning of the Cretaceous. The Jurassic constitutes the middle period of the Mesozoic Era, also known as the Age of...
Found on http://en.wikipedia.org/wiki/Jurassic

Jurassic

• (n.) The Jurassic period or formation; -- called also the Jura. • (a.) Of the age of the middle Mesozoic, including, as divided in England and Europe, the Lias, Oolite, and Wealden; -- named from certain rocks of the Jura mountains.
Found on http://thinkexist.com/dictionary/meaning/jurassic/

Jurassic

adjective of or relating to or denoting the second period of the Mesozoic era
Found on https://www.encyclo.co.uk/local/20974

Jurassic

Ju·ras'sic adjective (Geol.) Of the age of the middle Mesozoic, including, as divided in England and Europe, the Lias, Oölite, and Wealden; -- named from certain rocks of the Jura mountains. -- noun The Jurassic period or formation; -- called also the Jura...
Found on http://www.encyclo.co.uk/webster/J/17

Jurassic

a geological time period extending from 195 to 136 million years ago. See time table.
Found on http://www.seafriends.org.nz/books/glossary.htm

jurassic

A Period from 200 to 145 million years ago divided into three epochs:
Found on http://www.scientificpsychic.com/etc/geology-glossary.html

Jurassic

major unit of the geologic timescale that extends from about 199.6
Found on http://en.wikipedia.org/wiki/Glossary_of_geology

Jurassic

the geological time period when dinosaurs existed and birds first appeared; this period came just before the Cretaceous period
Found on http://insectzoo.msstate.edu/Glossary/

Jurassic

The Jurassic was the second geological period of the Mesozoic era. It followed the Triassic, which ended about 190 million years ago, and extended until the beginning of the Cretaceous period, about 139 million years ago. It was named in 1829 by A Brongniart after the Jura Mountains on the borders of France and Switzerland.
Found on http://www.probertencyclopaedia.com/browse/HJ.HTM

Jurassic

The middle period of the Mesozoic era, spanning the time between 213 and 145 million years ago. It is named after the Jura Mountains between France and Switzerland, where rocks of this age were first studied.
Found on https://www.encyclo.co.uk/local/21202

Jurassic

The middle period of the Mesozoic from 199Ma to 145Ma.
Found on http://www.encyclo.co.uk/local/20206

Jurassic

the period of geological time running from 213 to 145 million years ago. The name comes from the Jura Mountains on the French-Swiss border, where the most complete section of these rocks is found. See Geological Timescale
Found on http://www.sedgwickmuseum.org/education/glossary.html

Jurassic

The period of time between 142 and 205 million years ago.
Found on http://www.bgs.ac.uk/discoveringGeology/glossary.html

Jurassic

[n] - from 135 million to 190 million years ago
Found on http://www.webdictionary.co.uk/definition.php?query=Jurassic
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