英语词汇“pycnodont”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

pycnodont n. and adj.

Brit.

/ˈpɪknədɒnt/

U.S.

/ˈpɪknəˌdɑnt/

[probably after French pycnodontes, plural noun ( L. Agassiz Recherches sur les poissons fossiles (1833) II. 2); compare scientific Latin Pycnodus, genus name (1833 or earlier)] Palaeontology (a) n. 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; (b) adj. of, relating to, or belonging to this group of fishes.

ΘΚΠ

the world > animals > fish > class Osteichthyes or Teleostomi > subclass Actinopterygii > [noun] > superorder Ganoidei > miscellaneous fossil types

pycnodont1836

sauroid1836

Cephalaspis1842

buckler-head1847

Pteraspis1857

lepidoganoid1861

coccosteid1863

the world > animals > fish > class Osteichthyes or Teleostomi > subclass Actinopterygii > [adjective] > ganoid > of fossil or extinct types of

pycnodont1836

cephalaspean1854

cephalaspidean1872

pteraspidian1872

platysomid1878

1836 W. Buckland Geol. & Mineral. I. xiv. 281 The habits of the family of Pycnodonts appear to have been omnivorous.

1909 Science 10 Sept. 328/1 In the earliest known Pycnodont fishes from the Lower Lias..the grinding teeth form an irregular cluster.

1966 A. S. Romer Vertebr. Paleontol. (ed. 3) v. 60/1 Apart from the problems concerning the semionotid and pycnodont groups, a major portion of the holosteans seems fairly certain to constitute a natural group.

1990 M. J. Benton Vertebr. Palaeontol. vi. 133 The pycnodonts of the Jurassic and Cretaceous are mostly deep-bodied forms with long dorsal and anal fins.

单词	pycnodont
释义	> as lemmas pycnodont pycnodont n. and adj. Brit. /ˈpɪknədɒnt/ , U.S. /ˈpɪknəˌdɑnt/ [probably after French pycnodontes, plural noun ( L. Agassiz Recherches sur les poissons fossiles (1833) II. 2); compare scientific Latin Pycnodus, genus name (1833 or earlier)] Palaeontology (a) n. 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; (b) adj. of, relating to, or belonging to this group of fishes. ΘΚΠ the world > animals > fish > class Osteichthyes or Teleostomi > subclass Actinopterygii > [noun] > superorder Ganoidei > miscellaneous fossil types pycnodont1836 sauroid1836 Cephalaspis1842 buckler-head1847 Pteraspis1857 lepidoganoid1861 coccosteid1863 the world > animals > fish > class Osteichthyes or Teleostomi > subclass Actinopterygii > [adjective] > ganoid > of fossil or extinct types of pycnodont1836 cephalaspean1854 cephalaspidean1872 pteraspidian1872 platysomid1878 1836 W. Buckland Geol. & Mineral. I. xiv. 281 The habits of the family of Pycnodonts appear to have been omnivorous. 1909 Science 10 Sept. 328/1 In the earliest known Pycnodont fishes from the Lower Lias..the grinding teeth form an irregular cluster. 1966 A. S. Romer Vertebr. Paleontol. (ed. 3) v. 60/1 Apart from the problems concerning the semionotid and pycnodont groups, a major portion of the holosteans seems fairly certain to constitute a natural group. 1990 M. J. Benton Vertebr. Palaeontol. vi. 133 The pycnodonts of the Jurassic and Cretaceous are mostly deep-bodied forms with long dorsal and anal fins. extracted from pycno-comb. form < as lemmas
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> as lemmas