单词 | ceratitic |
释义 | ceratiticadj. Palaeontology. Pertaining to or characteristic of a ceratite or ceratites; spec. designating the lobed suture line typical of fossil ceratites. ΘΚΠ the world > life > biology > organism > fossil > [adjective] > of parts of fossils ceratitic1900 the world > life > biology > organism > fossil > [adjective] > types of rayed1713 coprolitic1829 belemnitic1847 goniatitic1884 trochitic1891 heterochronous1895 Ediacarian1972 ceratitic1976 1900 C. R. Eastman tr. K. A. von Zittel Text-bk. Palaeontol. I. vi. 559 Saddles and lobes have the typical ceratitic outlines, as a rule. 1920 A. M. Davies Introd. Palaeontol. iv. 163 In the Jurassic period the ceratitic type is absent, and the highly complex (ammonitic) suture is alone found. 1976 Geol. Mag. 113 40 The only internal evidence for age assignment of the Greville Formation is the collection of ceratitic ammonoids. 1986 G. Culverwell tr. P. Arduini & G. Teruzzi Macdonald Encycl. Fossils No. 91 The simple ‘ceratitic’ suture line has broad, rounded entire saddles and no denticulation. This entry has not yet been fully updated (first published 1997; most recently modified version published online June 2018). < adj.1900 |
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