acanthodian

== English == === Alternative forms === acanthodean === Etymology === From translingual Acanthodii +‎ -ian. === Pronunciation === (General American) IPA(key): /ˌæk.n̩ˈθoʊ.di.n̩/ Rhymes: -əʊdiən === Noun === acanthodian (plural acanthodians) (zoology) A member of a group of extinct fish (Acanthodii) that existed from the Silurian to the Permian period.[First attested in the mid 19th century.] 2009 January 15, Martin D. Brazeau, “The braincase and jaws of a Devonian 'acanthodian' and modern gnathostome origins”, Nature Volume 457 No. 7227, doi:10.1038/nature07436: The emerging picture of acanthodian (and perhaps placoderm) paraphyly does not overturn a general consensus about gnathostome interrelationships. ==== Translations ==== === Adjective === acanthodian (not comparable) Pertaining to Acanthodii.[First attested in the mid 19th century.] === References ===