Definition of acanthodian in English:

acanthodian

Syllabification: ac·an·tho·di·an
Pronunciation: /ˌakənˈTHōdēən
 
/

noun

  • A small spiny-finned, jawed fossil fish of a group found chiefly in the Devonian period.
    • Class (or subclass) Acanthodii
    More example sentences
    • The first jawed fish in the fossil record are the acanthodians, which first occur in the Late Silurian.
    • But the treasure I did find was in the form of a beautifully preserved large set of fossil fish jaws belonging to an acanthodian.
    • In addition, there are archaic elements, such as the antiarch and arthrodire placoderms as well as acanthodians.

Origin

mid 19th century: from modern Latin Acanthodii (from acantho-) + -an.

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