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Definition of Heterostraci
1. Noun. Extinct group of armored jawless fishes or fish-like vertebrate; taxonomy is not clear.
Generic synonyms: Animal Order
Group relationships: Order Ostracodermi, Ostracodermi
Member holonyms: Heterostracan
Lexicographical Neighbors of Heterostraci
Literary usage of Heterostraci
Below you will find example usage of this term as found in modern and/or classical literature:
1. Report of the Annual Meeting (1900)
"It is scarcely necessary for me to add that we find just as little evidence of
jaws or of teeth as in the case of the heterostraci. ..."
2. The Silurian Rocks of Britain by Benjamin Nieve Peach, John Horne, Jethro Justinian Harms Teall (1899)
"The recent ' find' therefore very greatly enlarges our conception of the
heterostraci, and indicates that, though we cannot consider them as actual Selachii ..."
3. Geological Magazine by Henry Woodward (1901)
"Your keen insight and wide knowledge of fossil ichthyology enabled you to show,
among other points, that the group of the heterostraci, which hitherto ..."
4. Text-book of Paleontology by Karl Alfred von Zittel (1902)
"In the more typical heterostraci, as also in the ... heterostraci. Ray Lankester.1
Exoskeleton consisting of shagreen, plates, or scales, ..."
5. Proceedings of the Royal Physical Society of Edinburgh by Royal Physical Society of Edinburgh (1902)
"The order of the heterostraci, made to hold the ... above-mentioned shows a
connection between the heterostraci and the ..."
6. Proceedings of the Royal Physical Society of Edinburgh by Royal Physical Society of Edinburgh (1902)
"The order of the heterostraci, made to hold the ... above-mentioned shows a
connection between the heterostraci and the ..."
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