Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun Any of various extinct primitive jawless fishes of the Ordovician through the Devonian periods, having bodies encased in an armor of bony plates.
from The Century Dictionary.
- Having a bony skin like a coat of mail; ostraciont, as a fish; pertaining to the Ostracodermi. Also ostracodermal, ostracodermous.
- noun An ostraciont fish, as a member of the Ostracodermi; a plectognath of the suborder Ostracodermi.
from the GNU version of the Collaborative International Dictionary of English.
- noun Any of several extinct fishlike jawless vertebrates having a heavily armored body; of the Paleozoic.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun extinct fish-like jawless vertebrate having a heavily armored body; of the Paleozoic
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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The oldest fossil related to all modern vertebrates, the ostracoderm a jawless, bony-plated fish, dates to about 490 million years ago.
Trout and Salmon of North America Robert J. Behnke 2002
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The oldest fossil related to all modern vertebrates, the ostracoderm a jawless, bony-plated fish, dates to about 490 million years ago.
Trout and Salmon of North America Robert J. Behnke 2002
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The oldest fossil related to all modern vertebrates, the ostracoderm a jawless, bony-plated fish, dates to about 490 million years ago.
Trout and Salmon of North America Robert J. Behnke 2002
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The oldest fossil related to all modern vertebrates, the ostracoderm a jawless, bony-plated fish, dates to about 490 million years ago.
Trout and Salmon of North America Robert J. Behnke 2002
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[[ostracoderm]] s jawless fish related to present-day [[lamprey]]
Conservapedia - Recent changes [en] HappyBirthdayDarwin 2010
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[[ostracoderm]] s jawless fish related to present-day [[lamprey]] s and
Conservapedia - Recent changes [en] HappyBirthdayDarwin 2010
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