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Meaning of anaspid

an•as•pid

Pronunciation: (u-nas'pid), [key]
— n. Paleontol.
  1. 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.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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