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单词 nummulitic
释义

nummuliticadj.

Brit. /nʌmjᵿˈlɪtɪk/, U.S. /ˌnəmjəˈlɪdɪk/
Origin: Formed within English, by derivation. Etymons: nummulite n., -ic suffix.
Etymology: < nummulite n. + -ic suffix. Compare French nummulitique (1853).The word appears in the printed text of a paper given by H. T. De la Beche in 1828, but not published until 1835 ( Trans. Geol. Soc. 3 181).
Geology.
Containing or consisting of nummulites; esp. designating an Eocene limestone formation which outcrops widely from North Africa and the Alps to east Asia.
ΘΚΠ
the world > the earth > structure of the earth > structural features > formations by contents > [adjective] > containing organic remains > containing fossils
fossiliferous1829
ammonitiferous1830
nummulitic1830
hippurite1831
indusial1833
fucoid1839
encrinal1845
reptiliferous1845
fucoidal1849
nummuline1861
encrinitic1863
encrinital1876
spiriferous1888
1830 C. Lyell Let. 10 Aug. in Life, Lett. & Jrnls. (1881) I. xii. 284 At Castel Follet..nummulitic limestone is eroded to the depth of 25 feet.
1833 C. Lyell Princ. Geol. III. 185 Secondary rocks, composed in great part of grey and greenish sandstone and conglomerate, with some thick beds of nummulitic limestone.
1863 J. D. Dana Man. Geol. 523 They [sc. the pyramids] are largely Nummulitic, many beds consisting almost wholly of..Nummulites.
1882 A. Geikie Text-bk. Geol. vi. iv. 837 The early Tertiary or nummulitic sea was upheaved into a succession of giant mountains.
1911 Science 10 Feb. 233/2 This formation, with its beds of nummulitic limestone and great numbers of cristellaria, carries an extensive and varied fauna.
1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) x. 239 Far more important are the Eocene Nummulitic limestones, found throughout the area of the great ocean.
1986 G. Culverwell tr. P. Arduini & G. Teruzzi Macdonald Encycl. Fossils No. 18 They sometimes occur in such large concentrations that they form entire rock units as the ‘nummulitic limestone’ outcrops found in Italy and other countries outside Europe.
This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022).
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adj.1830
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