单词 | pycnodont |
释义 | pycnodontPalaeontology noun Any of various extinct holostean fishes of the family Pycnodontidae or order Pycnodontiformes, which are usually deep-bodied and characterized by a pavement of crushing teeth in the upper and lower jaws, and are known from fossils of the Mesozoic era. adjective Of, relating to, or belonging to this group of fishes. OriginMid 19th century; earliest use found in William Buckland (1784–1856), geologist and dean of Westminster. Probably after French pycnodontes, plural noun; compare scientific Latin Pycnodus, genus name. |
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