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Ostracodermi

Ostracodermi (ostracoderms) The name often used in older textbooks for the fossil, armoured, jawless, agnathan fish of the Ordovician to early Carboniferous Periods. Probably the name indicates only a grade of development; some ostracoderms are close to the line of ancestry of the living Agnatha (lamprey and hagfish), others to the origin of the jawed vertebrates. The informal version of the name survives. See also CEPHALASPIDOMORPHI; PTERASPIDOMORPHI.

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"Ostracodermi." A Dictionary of Zoology. . Encyclopedia.com. 23 Aug. 2017 <http://www.encyclopedia.com>.

"Ostracodermi." A Dictionary of Zoology. . Encyclopedia.com. (August 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ostracodermi-0

"Ostracodermi." A Dictionary of Zoology. . Retrieved August 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ostracodermi-0

Ostracodermi

Ostracodermi (ostracoderms) The name often used in older textbooks for the fossil, armoured, jawless, agnathan fish of the Ordovician to early Carboniferous. Probably the name indicates only a grade of development; some ostracoderms are close to the line of ancestry of the living Agnatha (lamprey and hagfish), others to the origin of the jawed vertebrates. The informal version of the name survives.

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

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"Ostracodermi." A Dictionary of Earth Sciences. . Encyclopedia.com. 23 Aug. 2017 <http://www.encyclopedia.com>.

"Ostracodermi." A Dictionary of Earth Sciences. . Encyclopedia.com. (August 23, 2017). http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ostracodermi

"Ostracodermi." A Dictionary of Earth Sciences. . Retrieved August 23, 2017 from Encyclopedia.com: http://www.encyclopedia.com/science/dictionaries-thesauruses-pictures-and-press-releases/ostracodermi