acanthodian
/ˌæk.n̩ˈθoʊ.di.n̩/
noun 1adj 1
Definitions
noun
1
A member of a group of extinct fish (Acanthodii) that existed from the Silurian to the Permian period.
The emerging picture of acanthodian (and perhaps placoderm) paraphyly does not overturn a general consensus about gnathostome interrelationships.
adj
1
Pertaining to Acanthodii.
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