Cephalochordatan.

Brit.

/ˌkɛf(ə)ləʊkɔːˈdɑːtə/,

/ˌkɛf(ə)ləʊkɔːˈdeɪtə/, U.S.

/ˌsɛfəloʊkɔrˈdeɪdə/,

/ˌsɛfəloʊkɔrˈdɑdə/; see also cephalo- comb. form

Origin: Formed within English, by compounding. Etymons: cephalo- comb. form, Chordata n.

Etymology: < cephalo- comb. form + Chordata n. Compare scientific Latin Cephalochorda ( F. M. Balfour Treat. Compar. Embryol. (1881) II. xii. 27).

Zoology.

With plural agreement: a small subphylum or class of elongated, fish-like marine invertebrates within the phylum Chordata, comprising the lancelets. Also: the members of this group (collectively or individually); lancelets. Cf. Amphioxus n.

ΚΠ

1885 F. J. Bell Compar. Anat. & Physiol. v. 193 In the Cephalochordata we find an arrangement which reminds us of what obtains in the Annulata.

1949 New Biol. 6 113 The Cephalochordata are easily recognised as similar to the true vertebrates.

1962 D. J. Merrell Evol. & Genetics xiii. 142 The phylum Chordata has three subphyla: 1. Urochordata or Tunicata—the tunicates or sea squirts or ascidians. 2. Cephalochordata—amphioxus or the lancelets. 3. Vertebrata—the back-boned animals or vertebrates.

2005 Trends in Genetics 21 506/2 Cephalochordata:..these are the closest living non-craniate relatives of vertebrates, and contain all chordate features, yet lack the cranial and sensory complexity of the vertebrate clade.

This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021).

单词	cephalochordata
释义	Cephalochordatan. Brit. /ˌkɛf(ə)ləʊkɔːˈdɑːtə/, /ˌkɛf(ə)ləʊkɔːˈdeɪtə/, U.S. /ˌsɛfəloʊkɔrˈdeɪdə/, /ˌsɛfəloʊkɔrˈdɑdə/; see also cephalo- comb. form Origin: Formed within English, by compounding. Etymons: cephalo- comb. form, Chordata n. Etymology: < cephalo- comb. form + Chordata n. Compare scientific Latin Cephalochorda ( F. M. Balfour Treat. Compar. Embryol. (1881) II. xii. 27). Zoology. With plural agreement: a small subphylum or class of elongated, fish-like marine invertebrates within the phylum Chordata, comprising the lancelets. Also: the members of this group (collectively or individually); lancelets. Cf. Amphioxus n. ΚΠ 1885 F. J. Bell Compar. Anat. & Physiol. v. 193 In the Cephalochordata we find an arrangement which reminds us of what obtains in the Annulata. 1949 New Biol. 6 113 The Cephalochordata are easily recognised as similar to the true vertebrates. 1962 D. J. Merrell Evol. & Genetics xiii. 142 The phylum Chordata has three subphyla: 1. Urochordata or Tunicata—the tunicates or sea squirts or ascidians. 2. Cephalochordata—amphioxus or the lancelets. 3. Vertebrata—the back-boned animals or vertebrates. 2005 Trends in Genetics 21 506/2 Cephalochordata:..these are the closest living non-craniate relatives of vertebrates, and contain all chordate features, yet lack the cranial and sensory complexity of the vertebrate clade. This entry has been updated (OED Third Edition, September 2009; most recently modified version published online December 2021). < n.1885
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