plesiosauroidadj.n.

Brit.

/ˌpliːzɪəˈsɔːrɔɪd/, U.S.

/ˈˌplisiəˈsɔˌrɔɪd/

Origin: Formed within English, by derivation. Etymons: plesiosaur n., Plesiosaurus n., -oid suffix.

Etymology: < either plesiosaur n. or Plesiosaurus n. + -oid suffix. With later use, compare scientific Latin Plesiosauroidea, superfamily name (attributed to S. P. Welles (1943)).

Palaeontology.

A. adj.

Resembling or characteristic of members of the genus Plesiosaurus or the superfamily Plesiosauroidea of long-necked plesiosaurs.

ΘΚΠ

the world > animals > reptiles > extinct reptiles and dinosaurs > [adjective] > belonging to or characteristic of plesiousaurus

plesiosaurian1840

plesiosauroid1860

sauropterygian1861

1860 R. Owen Palæontol. 229 The slight indication of the sacral vertebræ; the non-confluence of the caudal hæmapophyses with each other, are all ‘plesiosauroid’.

1896 Philos. Trans. 1895 (Royal Soc.) B. 186 99 The intervertebral articulations on the centrums are concave, with a somewhat plesiosauroid concavity.

1985 D. Norman Illustr. Encycl. Dinosaurs 179/1 The long-necked or ‘plesiosauroid’ plesiosaurs, such as Elasmosaurus..and Plesiosaurus.

1999 J. D. Andriano Immortal Monster vi. 123 In the last shot the viewer (not any of the characters) sees the lake-monster, unmistakably plesiosauroid, in the misty mere.

B. n.

A member of the superfamily Plesiosauroidea; a long-necked plesiosaur.

ΘΚΠ

the world > animals > reptiles > extinct reptiles and dinosaurs > [noun] > order Sauropterygia > plesiosaurus

Plesiosaurus1821

plesiosaur1839

sauropterygian1861

plesiosaurian1869

plesiosauroid1870

1870 Amer. Naturalist 4 127 In the American genus Polycotylus, though the type of limb is that of the Plesiosauroid, the ulna and radius are those of Ichthyosaurus.

1892 Proc. Royal Soc. 52 247 On the shoulder girdle in certain Plesiosauroids.

1988 Paleobiology 14 189/2 The two lineages of plesiosaurs, the plesiosaurids (Superfamily Plesiosauroidea) and the pliosauroids (Superfamily Pliosauroidea), shared a similar mode of locomotion, that of subaqueous flying, using their two pairs of wing-like appendages as hydrofoils.

2000 Advertiser (Adelaide) (Nexis) 27 June 42 The giant marine reptiles of the Mesozoic era belonged to one of two groups—the plesiosauroids or the pliosauroids.

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

单词	plesiosauroid
释义	plesiosauroidadj.n. Brit. /ˌpliːzɪəˈsɔːrɔɪd/, U.S. /ˈˌplisiəˈsɔˌrɔɪd/ Origin: Formed within English, by derivation. Etymons: plesiosaur n., Plesiosaurus n., -oid suffix. Etymology: < either plesiosaur n. or Plesiosaurus n. + -oid suffix. With later use, compare scientific Latin Plesiosauroidea, superfamily name (attributed to S. P. Welles (1943)). Palaeontology. A. adj. Resembling or characteristic of members of the genus Plesiosaurus or the superfamily Plesiosauroidea of long-necked plesiosaurs. ΘΚΠ the world > animals > reptiles > extinct reptiles and dinosaurs > [adjective] > belonging to or characteristic of plesiousaurus plesiosaurian1840 plesiosauroid1860 sauropterygian1861 1860 R. Owen Palæontol. 229 The slight indication of the sacral vertebræ; the non-confluence of the caudal hæmapophyses with each other, are all ‘plesiosauroid’. 1896 Philos. Trans. 1895 (Royal Soc.) B. 186 99 The intervertebral articulations on the centrums are concave, with a somewhat plesiosauroid concavity. 1985 D. Norman Illustr. Encycl. Dinosaurs 179/1 The long-necked or ‘plesiosauroid’ plesiosaurs, such as Elasmosaurus..and Plesiosaurus. 1999 J. D. Andriano Immortal Monster vi. 123 In the last shot the viewer (not any of the characters) sees the lake-monster, unmistakably plesiosauroid, in the misty mere. B. n. A member of the superfamily Plesiosauroidea; a long-necked plesiosaur. ΘΚΠ the world > animals > reptiles > extinct reptiles and dinosaurs > [noun] > order Sauropterygia > plesiosaurus Plesiosaurus1821 plesiosaur1839 sauropterygian1861 plesiosaurian1869 plesiosauroid1870 1870 Amer. Naturalist 4 127 In the American genus Polycotylus, though the type of limb is that of the Plesiosauroid, the ulna and radius are those of Ichthyosaurus. 1892 Proc. Royal Soc. 52 247 On the shoulder girdle in certain Plesiosauroids. 1988 Paleobiology 14 189/2 The two lineages of plesiosaurs, the plesiosaurids (Superfamily Plesiosauroidea) and the pliosauroids (Superfamily Pliosauroidea), shared a similar mode of locomotion, that of subaqueous flying, using their two pairs of wing-like appendages as hydrofoils. 2000 Advertiser (Adelaide) (Nexis) 27 June 42 The giant marine reptiles of the Mesozoic era belonged to one of two groups—the plesiosauroids or the pliosauroids. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). < adj.n.1860
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