Zoology: General

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cosmoid scale

A Dictionary of Earth Sciences | 1999 | | Copyright

cosmoid scale Type of scale found only in fossil lung-fish (Dipnoi), and in Crossopterygii, including the living coelacanth. The thick scales are composed of layers of vitrodentine (harder than dentine and containing little organic matter), followed by cosmine (a type of dentine perforated by branching canals), and finally by layers of vascular and laminated bone underneath.

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AILSA ALLABY and MICHAEL ALLABY. "cosmoid scale." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "cosmoid scale." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O13-cosmoidscale.html

AILSA ALLABY and MICHAEL ALLABY. "cosmoid scale." A Dictionary of Earth Sciences. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-cosmoidscale.html

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cosmoid scale

A Dictionary of Zoology | 1999 | | Copyright

cosmoid scale A type of scale found only in fossil lungfish (Dipneusti), and in Crossopterygii, including the living coelacanth. The thick scales are composed of layers of vitrodentine, followed by cosmine, and finally by layers of vascular and laminated bone underneath.

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Pick a style below, and copy the text for your bibliography.

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MICHAEL ALLABY. "cosmoid scale." A Dictionary of Zoology. 1999. Encyclopedia.com. 1 Jun. 2012 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "cosmoid scale." A Dictionary of Zoology. 1999. Encyclopedia.com. (June 1, 2012). http://www.encyclopedia.com/doc/1O8-cosmoidscale.html

MICHAEL ALLABY. "cosmoid scale." A Dictionary of Zoology. 1999. Retrieved June 01, 2012 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-cosmoidscale.html

Learn more about citation styles