单词 | rachitomous |
释义 | > as lemmasrachitomous rachitomous adj. Brit. /reɪˈkɪtəməs/ , U.S. /reɪˈkɪdəməs/ , /rəˈkɪdəməs/ (usually in form rhachitomous) [after scientific Latin Rhachitomus, former genus name of a fossil amphibian (E. D. Cope 1878, in Proc. Amer. Philos. Soc. 17 526) later identified with the genus Eryops; compare also scientific Latin Rhachitomi, suborder name (Cope 1882, in form Rachitomi)] Palaeontology designating vertebrae consisting of articulated rather than fused pieces; having such vertebrae, temnospondylous; spec. of or relating to the suborder Rhachitomi of labyrinthodont amphibians, known from fossils of the Carboniferous, Permian, and Triassic periods.ΘΚΠ the world > animals > animal body > general parts > constituent materials > [adjective] > vertebrate > having segmented vertebrae rachitomous1882 1882 E. D. Cope in Amer. Naturalist 16 334 (heading) The rhachitomous Stegocephali. 1884 E. D. Cope in Amer. Naturalist 18 30 Rachitomous vertebræ from the same locality are of larger size and resemble those of Eryops. 1937 Jrnl. Paleontol. 11 617/2 This new species of the rachitomous amphibians is represented by a skull and the left ramus of the lower jaw. 1996 Trans. Royal Soc. Edinb. Earth Sci. 87 363 The rhachitomous vertebral column has a primitive, barely differentiated atlas-axis complex. < as lemmas |
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