hystrichospheren.

Brit.

/ˈhɪstrᵻkə(ʊ)sfɪə/, U.S.

/ˈhɪstrəkəˌsfɪ(ə)r/,

/ˈhɪstrəkoʊˌsfɪ(ə)r/

Origin: A borrowing from Latin. Etymon: Latin Hystrichosphaera.

Etymology: < scientific Latin Hystrichosphaera, genus name (O. Wetzel 1933, in Palaeontographica A. 78 32) < ancient Greek ὑστριχ- , ὕστριξ porcupine (see hystricid n. and adj.) + -ο- -o- connective + σϕαῖρα ball (see sphere n.).Compare French hystrichosphère (1942 or earlier).

Palaeontology. Now chiefly historical.

Any of a group of microfossils consisting of spherical or elliptical structures bearing spiny projections, originally thought to be distinct species of planktonic algae and later recognized to be specialized resting spores of dinoflagellates; (in later use also) a living resting spore of this type.

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

1955 Austral. Jrnl. Marine & Freshwater Res. 6 274 A general revision of this group of hystrichospheres is badly needed.

1968 Micropaleontology 13 265 The existence of dinoflagellates as fossils was known to geologists for decades before it was realized that many hystricospheres also had basic dinophycean affinities.

1995 C. van den Hoek et al. Algae xvi. 270/2 In the winter of 1967, living hystrichospheres were isolated from detritus on the flat sea floor off Woods Hole.

2007 Rev. Palaeobot. & Palynol. 147 121/1 The occurrence of Ruppia pollen, microforaminifera and hystrichospheres indicates that saltwater influenced conditions persisted.

This entry has been updated (OED Third Edition, June 2020; most recently modified version published online March 2022).

单词	hystrichosphere
释义	hystrichospheren. Brit. /ˈhɪstrᵻkə(ʊ)sfɪə/, U.S. /ˈhɪstrəkəˌsfɪ(ə)r/, /ˈhɪstrəkoʊˌsfɪ(ə)r/ Origin: A borrowing from Latin. Etymon: Latin Hystrichosphaera. Etymology: < scientific Latin Hystrichosphaera, genus name (O. Wetzel 1933, in Palaeontographica A. 78 32) < ancient Greek ὑστριχ- , ὕστριξ porcupine (see hystricid n. and adj.) + -ο- -o- connective + σϕαῖρα ball (see sphere n.).Compare French hystrichosphère (1942 or earlier). Palaeontology. Now chiefly historical. Any of a group of microfossils consisting of spherical or elliptical structures bearing spiny projections, originally thought to be distinct species of planktonic algae and later recognized to be specialized resting spores of dinoflagellates; (in later use also) a living resting spore of this type. 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 1955 Austral. Jrnl. Marine & Freshwater Res. 6 274 A general revision of this group of hystrichospheres is badly needed. 1968 Micropaleontology 13 265 The existence of dinoflagellates as fossils was known to geologists for decades before it was realized that many hystricospheres also had basic dinophycean affinities. 1995 C. van den Hoek et al. Algae xvi. 270/2 In the winter of 1967, living hystrichospheres were isolated from detritus on the flat sea floor off Woods Hole. 2007 Rev. Palaeobot. & Palynol. 147 121/1 The occurrence of Ruppia pollen, microforaminifera and hystrichospheres indicates that saltwater influenced conditions persisted. This entry has been updated (OED Third Edition, June 2020; most recently modified version published online March 2022). < n.1955
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