indusialadj.
/ɪnˈdjuːzɪəl/, /ɪnˈdʒuːzɪəl/, U.S. /ᵻnˈd(j)uʒ(i)əl/, /ᵻnˈd(j)uziəl/ Geology.
Containing, or composed of, indusia or larva-cases; in indusial limestone (see quots.).
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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
1833 C. Lyell Princ. Geol. III. 232 There is another remarkable form of fresh-water limestone in Auvergne, called ‘indusial’, from the cases, or indusiæ, of the larvæ of Phryganea, great heaps of which have been encrusted, as they lay, by hard travertin, and formed into a rock.
1851 G. F. Richardson Introd. Geol. (1855) 375 These indusial limestones form but a portion of the strata of the district.
This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2022).
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adj.1833