acanthodian.
/ak-uhn-thoh-dee-uhn/US // ˌæk ənˈθoʊ di ən //
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Definitions
n.noun · 名词
- 1.
- ›any small, spiny-finned, sharklike fish of the extinct order Acanthodii, from the Paleozoic Era.
Examples
There is no evidence that the lateral row of spines in the acanthodian Climatius has any other than a defensive significance.
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