arthrodire

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noun

Any member of the extinct order Arthrodira, armored jawed fishes that flourished in the Devonian period.

Scrabble 14
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Meanings

nounarthrodire (plural arthrodires)

plural arthrodires

  1. biologyAny member of the extinct order Arthrodira, armored jawed fishes that flourished in the Devonian period.

    The basicranial circulation of Ptomacanthus resembles that in arthrodire placoderms.

    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
Cite this entry
APA

arthrodire. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/arthrodire

MLA

“arthrodire.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/arthrodire. Accessed November 3, 2026.

Chicago

WatkinsX Dictionary, s.v. “arthrodire,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/arthrodire.

Source: arthrodire on Wiktionary, CC BY-SA 4.0.