different between devonian vs arthrodire

Romanian

From French dévonien

devonian m or n (feminine singular devonian?, masculine plural devonieni, feminine and neuter plural devoniene)

devonian f

arthrodire (plural arthrodires)

(zoology) Any member of the extinct order Arthrodira, armored jawed fishes that flourished in the Devonian period.
- 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 basicranial circulation of Ptomacanthus resembles that in arthrodire placoderms.

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