Look up: Devonian

1. 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 fam...
   Found on http://www.geologyrocks.co.uk/glossary/l
   
   
2. Devonian
   [n] - from 345 million to 405 million years ago
   Found on http://www.webdictionary.co.uk/definitio
   
   
3. 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 i...
   Found on http://www.sedgwickmuseum.org/education/
   
   
4. Devonian
   a geological strata/period depicted between 354 million and 417 million years before present;
   Found on http://www.encyclo.co.uk/visitor-contrib
   
   
5. 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;...
   Found on http://www.encyclo.co.uk/webster/D/54
   
   
6. Devonian
   De·vo'ni·an noun The Devonian age or formation.
   Found on http://www.encyclo.co.uk/webster/D/54
   
   
7. 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 f...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
8. 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/web
   
   
9. 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
   
   
10. 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/physgeo
    
    
11. 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/glossar
    
    
12. 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/brow
    
    
13. 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
    
    
14. 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/gloss
    
    
15. 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/education
    
    
16. Devonian
    The `Devonian` is a geologic period and system of the 359.2--> . It is named after Devon, England, where rocks from this period were first studied. During the Devonian Period the pectoral and pelvic fins of lobe-finned fish evolved into legs as they started to walk on land as tetrapods around 397 Ma...
    Found on http://en.wikipedia.org/wiki/Devonian