| 单词 | costal plate |
| 释义 | > as lemmascostal plate costal plate n. Zoology (a) any of the calcified plates forming the sides of the calyx of a crinoid (now rare); (b) (in the carapace of a chelonian) any of the bony plates that are located in a row on either side of the neural plates, and are attached beneath to the ribs; cf. neural plate n. (a) at neural adj. and n. Compounds. ΚΠ 1821 J. S. Miller Nat. Hist. Crinoidea 95 A Crinoidal animal, with a round column formed of many joints, on whose summit is placed a pelvis of three plates supporting five hexagonal and one pentagonal costal plate. 1831 J. E. Gray Synopsis Reptilium i. 5 The central row consists of five shields, which being placed over the vertebræ, are called vertebral plates; and the side rows of each are designated, for the same reason, from the bones on which they are placed, the costal plates. 1929 Jrnl. Paleontol. 3 250 (caption) Sketch..of radial and costal plates [of Delocrinus conicus]. 1957 Herpetologica 13 236 He seeks to explain the abnormal fusion of the vertebral column and costal plates on the basis of abnormal yolk retraction. 2011 Jrnl. Vertebr. Paleontol. 31 65/2 Most of the marginal scutes are wider than the peripherals and overlap the costal plates. < as lemmas |
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