| 释义 |
ceratitic, a. Palaeont.|sɛrəˈtɪtɪk|
[f. ceratite n. + -ic 1.]
Pertaining to or characteristic of a ceratite or ceratites; spec. designating the lobed suture line typical of fossil ceratites.
1900C. R. Eastman tr. K. A. von Zittel's Text-bk. Palæont. I. vi. 559 Saddles and lobes have the typical ceratitic outlines, as a rule. 1920A. M. Davies Introd. Palæont. iv. 163 In the Jurassic period the ceratitic type is absent, and the highly complex (ammonitic) suture is alone found. 1976Geol. Mag. CXIII. 40 The only internal evidence for age assignment of the Greville Formation is the collection of ceratitic ammonoids. 1986G. Culverwell tr. Arduini & Teruzzi's Macdonald Encycl. Fossils No. 91, The simple ‘ceratitic’ suture line has broad, rounded entire saddles and no denticulation. |