Devonian

a geological strata/period depicted between 354 million and 417 million years before present;

Devonian

The Devonian is a geologic period and system of the Paleozoic Era spanning from the end of the Silurian Period, about {Geologic Ages Inline|Devonian} Mya (million years ago), to the beginning of the Carboniferous Period, about {Geologic Ages Inline|Carboniferous}. It is named after Devon, England, where rocks from this period were first studied. T...
Found on http://en.wikipedia.org/wiki/Devonian

Devonian

[n] - from 345 million to 405 million years ago
Found on http://www.webdictionary.co.uk/definition.php?query=Devonian

Devonian

• (a.) Of or pertaining to Devon or Devonshire in England; as, the Devonian rocks, period, or system. • (n.) The Devonian age or formation.
Found on http://thinkexist.com/dictionary/meaning/devonian/

devonian

<geology> Of or pertaining to Devon or Devonshire in England; as, the Devonian rocks, period, or system. ... <geology> Devonian age, the age next older than the Carboniferous and later than the Silurian; called also the Age of fishes. The various strata of this age compose the Devonian formation or system, and include the old red sandst...
Found on http://www.encyclo.co.uk/local/20973

Devonian

Devonian period noun from 405 million to 345 million years ago; dominance of fishes and appearance of amphibians and ammonites
Found on http://wordnetweb.princeton.edu/perl/webwn?s=Devonian

Devonian

De·vo'ni·an adjective (Geol.) Of or pertaining to Devon or Devonshire in England; as, the Devonian rocks, period, or system. Devonian age (Geol.) , the age next older than the Carboniferous and later than the Silurian; -- called also the Age of fishes . The va...
Found on http://www.encyclo.co.uk/webster/D/54

DEVONIAN

A period from about 400 to 360 million years ago.
Found on http://www.juniorminers.com/glossary.html

DEVONIAN

A period of the Paleozoic era (after the Silurian and before the Mississippian), thought to have covered the span of time between 400 and 345 million years ago; also, the corresponding system of rocks. It is named after Devonshire, England, where rocks of this age were first studied.
Found on http://www.encyclo.co.uk/local/22047

Devonian

A period of the Paleozoic era, spanning the time between 410 and 360 million years ago. It is named after Devonshire, England, where rocks of this age were first studied.
Found on http://geology.er.usgs.gov/paleo/glossary.shtml

Devonian

A period of time between 354 and 417 million years ago.
Found on http://www.bgs.ac.uk/discoveringGeology/glossary.html

Devonian

A period of time in the Paleozoic Era that covered the time span between 400 and 345 million years.
Found on http://midju.tripod.com/glossary.html

Devonian

A period of time in the Paleozoic Era that covered the time span between 400 and 345 million years.
Found on http://volcano.oregonstate.edu/glossary/1

Devonian

A period of time in the Paleozoic Era that covered the time span between 400 and 345 million years.
Found on http://www.encyclo.co.uk/local/21455

Devonian

Geologic period that occurred roughly 360 to 408 million years ago. During this period, the first amphibians and trees appear.
Found on http://www.physicalgeography.net/physgeoglos/d.html

Devonian

geological period of 50 million years duration, extending from 395 to 345 million years ago. See time table.
Found on http://www.seafriends.org.nz/books/glossary.htm

Devonian

geological period when plants and animals appeared on land between 405 million and 350 million years ago, the time before the Carboniferous period
Found on http://insectzoo.msstate.edu/Glossary/

Devonian

Period of geologic time from 410 - 360 million years before the present. Life on land diversified, w
Found on http://www.superglossary.com/Glossary/Science/Biology/

Devonian

The Devonian was the sixth geological period, 300,000,000 years ago. It marked the evolution of the insects and amphibians.
Found on http://www.probertencyclopaedia.com/browse/HD.HTM

Devonian

The fourth period of the Palaeozoic. Spans 409-353Ma. The rocks of this period are referred to as Old Red Sandstone (ORS) as they are often red coloured sandstone. The name originates from the county of Devon in South West England. The colonisation of land was also well under way as shown by the famous Rynie Chert deposit.
Epochs:
Late Devoni...
Found on http://www.encyclo.co.uk/local/20206

Devonian

the period of geological time between 410 and 360 million years ago. The name comes from the strata in Devon, S.W. England, which define this part of geological history. The Devonian is also known as the Old Red Sandstone (often referred to as O.R.S.) because the characteristic colour of the rocks is red. The red colour is because of a high iron co...
Found on http://www.sedgwickmuseum.org/education/glossary.html
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