discolithn.

Brit.

/ˈdɪskə(ʊ)lɪθ/, U.S.

/ˈdɪskoʊˌlɪθ/,

/ˈdɪskəˌlɪθ/

Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: disco- comb. form, -lith comb. form.

Etymology: < disco- comb. form + -lith comb. form, after scientific Latin Discolithus (Huxley: see quot. 1868).Huxley's word, originally a morphological descriptive term, was subsequently treated as a genus name for a fossil alga, but in this context it had already been used for a foraminiferan ( A. Fortis Mémoires histoire naturelle de l'Italie II. (1802)) and was replaced by the name Discolithina.

Biology.

Any coccolith with a more or less discoid shape, often with a thickened or elevated rim surrounding a central area which may be perforated (cf. cyatholith n.).

ΘΚΠ

the world > life > biology > organism > fossil > [noun] > types of

astroite1610

belemnite1646

mussel-stone1660

scallop-stone1668

trochite1676

conchite1677

ophiomorphite1677

pectinite1677

worm-stone1677

musculite1681

serpent-stone1681

sugar-plum1681

glossopetraa1684

ague shell1708

forket1708

mytilite1727

grit1748

phytolithus1761

fairy beads1767

fairy fingers1780

fairy arrow1794

gryphite1794

ram's horn1797

hysterolite1799

tubulite1799

thunder-pick1801

celleporite1808

ceraunite1814

seraph1822

serpulite1828

coprolite1829

subfossil1831

pencil1843

trigonellite1845

buccinite1852

rudist1855

guide fossil1867

witch's cradle1867

coccolith1868

fairy cheeses1869

discolith1871

Portland screw1871

spiniferite1872

cyatholith1875

cryptozoon1883

sabellite1889

palaeospecies1895

homoeomorph1898

rudistid1900

megafossil1932

scolecodont1933

macrofossil1937

hystrichosphere1955

palynomorph1961

acritarch1963

molecular fossil1965

mitrate1967

1868 T. H. Huxley in Q. Jrnl. Microsc. Sci. 8 206 I find that two distinct kinds of bodies have been described by myself and others under the name of coccoliths. I shall term one kind Discolithus, and the other Cyatholithus.]

1871 Q. Jrnl. Microsc. Sci. 11 62 Haeckel points out that there are circular discoliths as well as oval ones, which alone were described by Huxley..[and] that the cyatholiths are simply two discoliths united by an axial piece.

1973 N.Z. Jrnl. Geol. & Geophysics 16 71 Natural groupings within the coccolithophorids sensu stricto are reflected..by the major types of coccolith they produce (e.g. caneoliths, discoliths, placoliths, etc.) during the nonmotile phase of their life cycle.

1985 G. Bignot Elements Micropalaeontol. (1994) vii. 73 (caption) Living coccolithophore (Syracosphaera). Flagellate stage with coccosphere formed from two types of coccoliths: normal discoliths with a flat base and ‘buccal’ discoliths with a central stem.

This entry has been updated (OED Third Edition, December 2013; most recently modified version published online March 2022).

单词	discolith
释义	discolithn. Brit. /ˈdɪskə(ʊ)lɪθ/, U.S. /ˈdɪskoʊˌlɪθ/, /ˈdɪskəˌlɪθ/ Origin: Formed within English, by compounding; modelled on a Latin lexical item. Etymons: disco- comb. form, -lith comb. form. Etymology: < disco- comb. form + -lith comb. form, after scientific Latin Discolithus (Huxley: see quot. 1868).Huxley's word, originally a morphological descriptive term, was subsequently treated as a genus name for a fossil alga, but in this context it had already been used for a foraminiferan ( A. Fortis Mémoires histoire naturelle de l'Italie II. (1802)) and was replaced by the name Discolithina. Biology. Any coccolith with a more or less discoid shape, often with a thickened or elevated rim surrounding a central area which may be perforated (cf. cyatholith n.). ΘΚΠ the world > life > biology > organism > fossil > [noun] > types of astroite1610 belemnite1646 mussel-stone1660 scallop-stone1668 trochite1676 conchite1677 ophiomorphite1677 pectinite1677 worm-stone1677 musculite1681 serpent-stone1681 sugar-plum1681 glossopetraa1684 ague shell1708 forket1708 mytilite1727 grit1748 phytolithus1761 fairy beads1767 fairy fingers1780 fairy arrow1794 gryphite1794 ram's horn1797 hysterolite1799 tubulite1799 thunder-pick1801 celleporite1808 ceraunite1814 seraph1822 serpulite1828 coprolite1829 subfossil1831 pencil1843 trigonellite1845 buccinite1852 rudist1855 guide fossil1867 witch's cradle1867 coccolith1868 fairy cheeses1869 discolith1871 Portland screw1871 spiniferite1872 cyatholith1875 cryptozoon1883 sabellite1889 palaeospecies1895 homoeomorph1898 rudistid1900 megafossil1932 scolecodont1933 macrofossil1937 hystrichosphere1955 palynomorph1961 acritarch1963 molecular fossil1965 mitrate1967 1868 T. H. Huxley in Q. Jrnl. Microsc. Sci. 8 206 I find that two distinct kinds of bodies have been described by myself and others under the name of coccoliths. I shall term one kind Discolithus, and the other Cyatholithus.] 1871 Q. Jrnl. Microsc. Sci. 11 62 Haeckel points out that there are circular discoliths as well as oval ones, which alone were described by Huxley..[and] that the cyatholiths are simply two discoliths united by an axial piece. 1973 N.Z. Jrnl. Geol. & Geophysics 16 71 Natural groupings within the coccolithophorids sensu stricto are reflected..by the major types of coccolith they produce (e.g. caneoliths, discoliths, placoliths, etc.) during the nonmotile phase of their life cycle. 1985 G. Bignot Elements Micropalaeontol. (1994) vii. 73 (caption) Living coccolithophore (Syracosphaera). Flagellate stage with coccosphere formed from two types of coccoliths: normal discoliths with a flat base and ‘buccal’ discoliths with a central stem. This entry has been updated (OED Third Edition, December 2013; most recently modified version published online March 2022). < n.1871
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