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heterostracan
[ het-uh-ros-truh-kuhn ]
/ ˌhɛt əˈrɒs trə kən /
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noun Paleontology.
any of several ostracoderms of the order Heterostraci, from the Silurian and Devonian Periods, having the anterior part of the body enclosed in bony plates.
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Words nearby heterostracan
heterosexuality, heterosis, heterosocial, heterosporous, heterospory, heterostracan, heterostyled, heterostyly, heterosuggestion, heterotactic, heterotaxia
Dictionary.com Unabridged
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2021
How to use heterostracan in a sentence
Older than the latter is the heterostracan, Pteraspis, and Cyathaspis.
The Origin of Vertebrates|Walter Holbrook GaskellThe best known of the Heterostracan families is that of Pteraspidæ.
A Guide to the Study of Fishes, Volume 1 (of 2)|David Starr Jordan