anaspid

anaspid
/euh nas"pid/, n. Paleontol.
any member of an extinct order, Anaspida, of small, freshwater jawless fishes of the Silurian and Devonian periods, characterized by a single nostril, narrow rows of scales, and, usually, an armor-plated head.
[ < NL Anaspida name of the order, equiv. to an- AN-3 + Gk aspid- (s. of aspís shield) + -a neut. pl. n. ending]

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Universalium. 2010.

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  • anaspid — an·as·pid …   English syllables

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  • Anaspides — Anaspida  Ne doit pas être confondu avec Anapsida …   Wikipédia en Français

  • Birkenia — Taxobox name = Birkenia status = fossil image caption = Birkenia elegans fossil range = Late Silurian Early Devonian regnum = Animalia phylum = Chordata classis = Anaspida genus = Birkenia species = Birkenia elegans Birkenia is a genus of extinct …   Wikipedia

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  • Fish — /fish/, n. Hamilton, 1808 93, U.S. statesman: secretary of state 1869 77. * * * I Any of more than 24,000 species of cold blooded vertebrates found worldwide in fresh and salt water. Living species range from the primitive lampreys and hagfishes… …   Universalium

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