Definition of acanthodian in English:

acanthodian

Line breaks: acan|tho¦di¦an
Pronunciation: /əˌkanˈθəʊdɪən
 
/

noun

A small spiny-finned 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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