Cenozoicadj.n.

Brit.

/ˌsiːnə(ʊ)ˈzəʊɪk/, U.S.

/ˌsinəˈzoʊɪk/

Forms:

α. 1800s– Kainozoic, 1800s– Cainozoic.

β. 1800s– Caenozoic, 1900s– Cenozoic.

Origin: A borrowing from Greek, combined with an English element. Etymons: ancient Greek καινός , -zoic comb. form¹.

Etymology: < ancient Greek καινός new, recent (see -cene comb. form) + -zoic comb. form¹, after Palaeozoic adj. Compare Mesozoic adj.The α. forms reflect the diphthong of the Greek etymon. The β. forms show an alteration based on the spelling conventions for Latin words of ultimately Greek origin (compare cenosite n. beside kainosite n.); these forms of the word did not become common until the late 19th cent.For the α. forms N.E.D. (1888) gives the pronunciation as (kainozō^u·ik, kēⁱno-) /kaɪnəʊˈzəʊɪk/, /keɪnəʊ-/.

Geology.

A. adj.

Designating the most recent era of geological time, lasting from the end of the Mesozoic era (about 65 million years ago, the end of the Cretaceous period) to the present day; of, relating to, or occurring during this era.The Cenozoic era comprises the Tertiary and Quaternary periods or sub-eras; the Tertiary is itself subdivided into the Neogene and Palaeogene periods. The Cenozoic era has seen the rapid evolution and rise to dominance of mammals, birds, and flowering plants.

ΘΚΠ

the world > the earth > structure of the earth > age or period > [adjective] > Cenozoic

Cenozoic1840

Neozoic1873

1840 J. Phillips in Penny Cycl. XVII. 154/1 Corresponding terms (as Palæozoic, Mesozoic, Kainozoic, &c.) may be made, nor will these necessarily require change upon every new discovery.

1841 J. Phillips Figures & Descr. Palæozoic Fossils Cornwall 161 The pulmoniferous and solenostomatous Gasteropoda, Argonauta, cycloid Fishes, Crocodiles proper, Cetacea, and Mammalia, which form the Cainozoic or recent (including the tertiary and existing) system of animal life.

1863 Q. Rev. Oct. 396 A general conspectus of the later cænozoic periods.

1956 R. Carrington Guide Earth Hist. (1958) vi. 57 We ourselves are living in the seventh division of the Cenozoic Era, known as the Holocene.

1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) p. iii Consider the other bivalved group, the lamellibranchs, whose shells are especially familiar objects on our sea-shores and in Cainozoic deposits.

1991 R. Goldring Fossils in Field iv. 80 Mesozoic and Caenozoic brachiopods better resisted disarticulation, typically retain their original skeleton and are easily released from the sediment.

2006 K. D. Rose Beginning Age Mammals iv. 56/1 Multituberculates were abundant in many Mesozoic and Early Cenozoic faunas of the northern continents.

B. n.

With the. The Cenozoic era; the system of rocks and deposits dating from this era.

ΘΠ

the world > the earth > structure of the earth > age or period > [noun] > primary or Palaeozoic

1863 J. D. Dana Man. Geol. iii. 497 The ordinary Rhombifers culminated in the Jurassic..while the Pycnodonts were numerous in the Cretaceous, and continue to be largely represented in the Cenozoic.

1952 W. J. Miller Introd. Hist. Geol. (ed. 6) xix. 264 (heading) As the name indicates, the Mesozoic was the era of transition between the Paleozoic and Cenozoic.

1969 Proc. Geol. Soc. Aug. 152 The rocks commonly accepted as of Danian age should be included in the Cainozoic.

2011 Earth & Planetary Sci. Lett. 302 443 Previous studies have shown that Ephedra was widely distributed over Asia during the early Cenozoic.

This entry has been updated (OED Third Edition, December 2022).

单词	cenozoic
释义	Cenozoicadj.n. Brit. /ˌsiːnə(ʊ)ˈzəʊɪk/, U.S. /ˌsinəˈzoʊɪk/ Forms: α. 1800s– Kainozoic, 1800s– Cainozoic. β. 1800s– Caenozoic, 1900s– Cenozoic. Origin: A borrowing from Greek, combined with an English element. Etymons: ancient Greek καινός , -zoic comb. form¹. Etymology: < ancient Greek καινός new, recent (see -cene comb. form) + -zoic comb. form¹, after Palaeozoic adj. Compare Mesozoic adj.The α. forms reflect the diphthong of the Greek etymon. The β. forms show an alteration based on the spelling conventions for Latin words of ultimately Greek origin (compare cenosite n. beside kainosite n.); these forms of the word did not become common until the late 19th cent.For the α. forms N.E.D. (1888) gives the pronunciation as (kainozō^u·ik, kēⁱno-) /kaɪnəʊˈzəʊɪk/, /keɪnəʊ-/. Geology. A. adj. Designating the most recent era of geological time, lasting from the end of the Mesozoic era (about 65 million years ago, the end of the Cretaceous period) to the present day; of, relating to, or occurring during this era.The Cenozoic era comprises the Tertiary and Quaternary periods or sub-eras; the Tertiary is itself subdivided into the Neogene and Palaeogene periods. The Cenozoic era has seen the rapid evolution and rise to dominance of mammals, birds, and flowering plants. ΘΚΠ the world > the earth > structure of the earth > age or period > [adjective] > Cenozoic Cenozoic1840 Neozoic1873 1840 J. Phillips in Penny Cycl. XVII. 154/1 Corresponding terms (as Palæozoic, Mesozoic, Kainozoic, &c.) may be made, nor will these necessarily require change upon every new discovery. 1841 J. Phillips Figures & Descr. Palæozoic Fossils Cornwall 161 The pulmoniferous and solenostomatous Gasteropoda, Argonauta, cycloid Fishes, Crocodiles proper, Cetacea, and Mammalia, which form the Cainozoic or recent (including the tertiary and existing) system of animal life. 1863 Q. Rev. Oct. 396 A general conspectus of the later cænozoic periods. 1956 R. Carrington Guide Earth Hist. (1958) vi. 57 We ourselves are living in the seventh division of the Cenozoic Era, known as the Holocene. 1961 J. Stubblefield Davies's Introd. Palaeontol. (ed. 3) p. iii Consider the other bivalved group, the lamellibranchs, whose shells are especially familiar objects on our sea-shores and in Cainozoic deposits. 1991 R. Goldring Fossils in Field iv. 80 Mesozoic and Caenozoic brachiopods better resisted disarticulation, typically retain their original skeleton and are easily released from the sediment. 2006 K. D. Rose Beginning Age Mammals iv. 56/1 Multituberculates were abundant in many Mesozoic and Early Cenozoic faunas of the northern continents. B. n. With the. The Cenozoic era; the system of rocks and deposits dating from this era. ΘΠ the world > the earth > structure of the earth > age or period > [noun] > primary or Palaeozoic 1863 J. D. Dana Man. Geol. iii. 497 The ordinary Rhombifers culminated in the Jurassic..while the Pycnodonts were numerous in the Cretaceous, and continue to be largely represented in the Cenozoic. 1952 W. J. Miller Introd. Hist. Geol. (ed. 6) xix. 264 (heading) As the name indicates, the Mesozoic was the era of transition between the Paleozoic and Cenozoic. 1969 Proc. Geol. Soc. Aug. 152 The rocks commonly accepted as of Danian age should be included in the Cainozoic. 2011 Earth & Planetary Sci. Lett. 302 443 Previous studies have shown that Ephedra was widely distributed over Asia during the early Cenozoic. This entry has been updated (OED Third Edition, December 2022). < adj.n.1840
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