单词 | paradoxidian |
释义 | Paradoxidianadj. Palaeontology. Of or relating to the genus Paradoxides or the family Paroxididae of trilobites of Middle Cambrian age; characterized by the occurrence of fossils of such trilobites. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > trilobites > [adjective] > of or relating to Paradoxides Paradoxidian1882 1882 A. Geikie Text-bk. Geol. iv. ii. i. 652 It has been proposed to group the Cambrian system according to the distribution of characteristic trilobites, into two divisions—the lower..termed Paradoxidian, and the upper..Olenidian. 1916 Q. Jrnl. Geol. Soc. 71 442 The Abbey Shales..contain a hitherto unsuspected fauna of Paradoxidian age. 1934 Philos. Trans. (Royal Soc.) B. 223 315 The rock..contains Paradoxidian fragments and horny brachiopoids. 1987 Jrnl. Geogr. (Tokyo) 96 339 In the Middle Cambrian period..the Paradoxidian province expanded into Turkey. This entry has been updated (OED Third Edition, June 2005; most recently modified version published online March 2022). < adj.1882 |
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