(a) n. any of various extinct holostean fishes of the family Pycnodontidae or order Pycnodontiformes, which are usually deep-bodied and characterized…
| 单词 | θ36836 |
| 释义 | the world > animals > fish > class Osteichthyes or Teleostomi > subclass Actinopterygii > [noun] > superorder Ganoidei > miscellaneous fossil types (7) pycnodont1836 (a) n. any of various extinct holostean fishes of the family Pycnodontidae or order Pycnodontiformes, which are usually deep-bodied and characterized… sauroid1836 A sauroid fish. Cephalaspis1842 A genus of fossil ganoid fishes found in the Old Red Sandstone, having a large buckler-shaped plate attached to the head: also called buckler-heads. buckler-head1847 the fossil fish Cephalaspis. Pteraspis1857 A genus of armoured jawless fossil fishes (ostracoderms) of the Lower Devonian with the anterior end enclosed by a shield of bony plates; a fish of… lepidoganoid1861 (a) adj. pertaining to the Lepidoganoidei, a group of ganoid fishes having regular scales instead of plates; (b) n. a fish of this group. coccosteid1863 A member of the family Coccosteidæ of ganoid fishes, which includes the fossil genus Coccosteus. |
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