pleuracanthadj.n.

Brit.

/ˈplʊərəkanθ/,

/ˈplɔːrəkanθ/, U.S.

/ˈplʊrəˌkænθ/

Origin: A borrowing from Latin. Etymon: Latin Pleuracanthus.

Etymology: < scientific Latin Pleuracanthus, genus name ( L. Agassiz Recherches sur poissons fossiles (1837) III. 68) < ancient Greek πλευρά side (see pleura n.) + ἄκανθα spine, thorn (see acanthus n.). With use as adjective compare pleuracanthoid adj.; with use as noun compare pleuracanthoid n. and slightly later pleuracanthid n.

Palaeontology.

A. adj.

Designating or relating to shark-like fishes of the order Xenacanthiformes (formerly Pleuracanthodii), known from fossil remains from the Devonian to the Triassic periods and typically having a long spine behind the skull bordered by two rows of small denticles, an elongated dorsal fin, and a diphycercal tail.

ΚΠ

1890 Cent. Dict. Pleuracanth, same as pleuracanthoid.

1900 Nature 20 Sept. 505/1 Assuming that the Pleuracanth form originated from one..of simple parallel rods.

1940 Jrnl. Nat. Hist. 5 323 (title) The affinities of the Palaeozoic pleuracanth sharks.

1985 Philos. Trans. (Royal Soc.) B. 309 244 The sharks and their allies..seem to have been exclusively marine (with the exception of the Carboniferous pleuracanth sharks).

B. n.

A pleuracanth fish.

ΘΚΠ

the world > animals > fish > subclass Elasmobranchii > order Pleurotremata > [noun] > belonging to specific extinct families

hybodont1847

petalodont1872

pleuracanth1890

pleuracanthoid1890

1890 Cent. Dict. Pleuracanth, same as pleuracanthoid.

1902 Science 31 Oct. 702/2 The sharks in question were Pleuracanths, well known in the Permian of Europe.

1966 A. S. Romer Vertebr. Paleontol. (ed. 3) iv. 45/1 Little is known of the ancestry of the pleuracanths.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	pleuracanth
释义	pleuracanthadj.n. Brit. /ˈplʊərəkanθ/, /ˈplɔːrəkanθ/, U.S. /ˈplʊrəˌkænθ/ Origin: A borrowing from Latin. Etymon: Latin Pleuracanthus. Etymology: < scientific Latin Pleuracanthus, genus name ( L. Agassiz Recherches sur poissons fossiles (1837) III. 68) < ancient Greek πλευρά side (see pleura n.) + ἄκανθα spine, thorn (see acanthus n.). With use as adjective compare pleuracanthoid adj.; with use as noun compare pleuracanthoid n. and slightly later pleuracanthid n. Palaeontology. A. adj. Designating or relating to shark-like fishes of the order Xenacanthiformes (formerly Pleuracanthodii), known from fossil remains from the Devonian to the Triassic periods and typically having a long spine behind the skull bordered by two rows of small denticles, an elongated dorsal fin, and a diphycercal tail. ΚΠ 1890 Cent. Dict. Pleuracanth, same as pleuracanthoid. 1900 Nature 20 Sept. 505/1 Assuming that the Pleuracanth form originated from one..of simple parallel rods. 1940 Jrnl. Nat. Hist. 5 323 (title) The affinities of the Palaeozoic pleuracanth sharks. 1985 Philos. Trans. (Royal Soc.) B. 309 244 The sharks and their allies..seem to have been exclusively marine (with the exception of the Carboniferous pleuracanth sharks). B. n. A pleuracanth fish. ΘΚΠ the world > animals > fish > subclass Elasmobranchii > order Pleurotremata > [noun] > belonging to specific extinct families hybodont1847 petalodont1872 pleuracanth1890 pleuracanthoid1890 1890 Cent. Dict. Pleuracanth, same as pleuracanthoid. 1902 Science 31 Oct. 702/2 The sharks in question were Pleuracanths, well known in the Permian of Europe. 1966 A. S. Romer Vertebr. Paleontol. (ed. 3) iv. 45/1 Little is known of the ancestry of the pleuracanths. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < adj.n.1890
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