/ɔːθəʊˈsɛrətʌɪtiːz/, U.S. /ˌɔrθəˈsɛrəˌtaɪdiz/. Also with capital initial.orthoceratiten.
/ˌɔːθə(ʊ)ˈsɛrətʌɪt/, U.S. /ˌɔrθoʊˈsɛrəˌtaɪt//ɔːθəʊˈsɛrətʌɪtiːz/, U.S. /ˌɔrθəˈsɛrəˌtaɪdiz/. Also with capital initial. Palaeontology.
A fossil shell of a nautiloid cephalod mollusc of the Palaeozoic or early Mesozoic eras, having a long, straight (or nearly straight) chambered shell; spec. a member of the former genus Orthoceratites or family Orthoceratidae; cf. orthoceras n. Also in Latin form Orthoceratites (in later use only as the name of a genus).
ΘΚΠ
the world > life > biology > organism > fossil > [noun] > particular parts of
ostracite1601
horse-head1708
nucleus1734
orthoceras1734
orthoceratite1734
alveolus1747
volutite1802
strombite1811
helicite1828
turbinite1828
phragmocone1843
pro-ostracum1864
orthoceratoid1885
nema1901
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Tetrabranchiata > family Orthoceratidae > genus Orthoceras > member of > fossil shell of
orthoceratite1734
the world > animals > invertebrates > subkingdom Metazoa > grade Triploblastica or Coelomata > class Cephalopoda > [noun] > order Tetrabranchiata > family Orthoceratidae > genus Orthoceras > member of
orthoceratite1786
1734 Philos. Trans. 1733–4 (Royal Soc.) 38 192 The sixth Chapter is of the Orthoceras and Orthoceratites, or stony Concretion in its Cavity. Of these last Stones he produces nine different Species, which he distinguishes chiefly by the Pipe, or Canal, which runs through them.
1755 Philos. Trans. 1754 (Royal Soc.) 48 804 The orthoceratites is a strait concamerated shell, ending in a point.
1786 Philos. Trans. (Royal Soc.) 76 445 The large turtles, the numberless echinites, madrepores, shells, alcyoniums, belemnites, orthoceratites, and so on, are all sea animals.
1846 F. M'Coy Synopsis Silurian Fossils Ireland 10 Nothing more than a zoophyte enveloping common Orthoceratites.
1865 Philos. Trans. (Royal Soc.) 155 582 For a distance of about 2 feet 6 inches upwards [the stratum]..was one entire mass of fossil shells of the genera Goniatites, Orthoceratites, Aviculopecten, and Posidonia.
1871 G. Hartwig Subterranean World ii. 18 In the more ancient Palæozoic seas flourished the Orthoceratites, or straight-chambered shells, resembling a nautilus uncoiled.
1890 Harper's Mag. Aug. 428/2 One class [sc. of mollusks], known as orthoceratites, whose remains are very abundant in our limestones, were ten and even twenty feet in length.
1914 Science 13 Mar. 405/1 The alternating red and greenish-yellow shales and sandstones..are here very fossiliferous... Here it carries Orthoceratites, Gasteropods, Brachiopods, etc., in great abundance.
1954 Sci. Monthly July 49/2 At high water mark at the foot of the cliff we found numerous Orthoceratites [cephalopod], Murchisonia [snails], and trilobites.
1970 Science 18 Dec. 1301/2 Many of the goniatites and orthoceratites of this locality show details, not previously observed, that are somewhat difficult to explain.
Compounds
General attributive, as orthoceratite limestone, orthoceratite schist, etc.
ΚΠ
1837 C. Lyell Let. 29 Aug. in Life, Lett. & Jrnls. (1881) II. xxi. 20 The blocks of red syenitic granite, which..I saw..sending its veins into the trilobite and orthoceratite schist, have been carried with small gravel of the same.
1853 T. Ross tr. A. von Humboldt Personal Narr. Trav. Amer. III. xxxii. 376 The orthoceratite limestone of the Alleghanies.
1996 Earth & Planetary Sci. Lett. 145 31 Thirteen fossil meteorites have been found in lower Ordovician Orthoceratite Limestone at Kinnekulle, Sweden.
Derivatives
ΚΠ
1872 A. Hyatt in Amer. Naturalist (1873) 7 105 The simple Nautiloid-like Goniatites of the Silurian may exhibit an Orthoceratitic or straight form, or be closely coiled in the young of different varieties of two distinct species.
1887 Amer. Naturalist 21 65 A straight orthoceratitic shell, Mimoceras.
This entry has been updated (OED Third Edition, September 2004; most recently modified version published online March 2022).
<
n.1734- to make easting
- to make easy
- to make english
- to make entry
- to make essoin
- to make esteem of
- to make estimation of
- to make etc
- to make etc account of
- to make etc count of
- to make etc esteem of
- to make etc estimation of
- to make etc of
- to make etc on
- to make etc phrase about
- to make etc reckoning of
- to make etc regard of
- to make etc riddance
- to make etc running
- to make etc spare
- to make etc store of
- to make etc way
- to make etc work
- to make etc —— sense
- to make even