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单词 conodont
释义

conodont


co·no·dont

C0577500 (kō′nə-dŏnt′, kŏn′ə-)n.1. Any of various small marine chordates of the group Conodonta of the Paleozoic Era and the Triassic Period, preserved primarily in the form of their conelike teeth.2. A fossil tooth of this chordate. Conodonts are the most widespread Paleozoic microfossils and are important for biostratigraphic indexing.
[Greek kōnos, cone; see kō- in Indo-European roots + -odont.]

conodont

(ˈkəʊnədɒnt; ˈkɒn-) n (Palaeontology) any of various small Palaeozoic toothlike fossils derived from an extinct eel-like marine animal[C19: from Greek kōnos cone + odont]

co•no•dont

(ˈkoʊ nəˌdɒnt, ˈkɒn ə-)

n. a toothlike Paleozoic and early Mesozoic microfossil, representing the remains of small eellike marine animals of the order Conodonta. [1855–60; < German Conodonten (pl.) < Greek kôn(os) cone + -odont -odont]
Thesaurus
Noun1.conodont - the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodontatooth - hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for attack and defense
2.conodont - small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone; late Cambrian to late Triassic; possible predecessor of the cyclostomesagnathan, jawless fish, jawless vertebrate - eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct formsConodonta, Conodontophorida, order Conodonta, order Conodontophorida - extinct order of primitive vertebrates; the precise taxonomy is not clear; in some classifications considered a separate phylum

conodont


conodont

[′kän·ə‚dänt] (paleontology) A minute, toothlike microfossil, composed of translucent amber-brown, fibrous or lamellar calcium phosphate; taxonomic identity is controversial.

conodont


conodont

a tooth-like fossil, amber in colour. Conodonts occur in sediments from the CAMBRIAN to the TRIASSIC and are thought to be associated with the mouth-parts of primitive chordates such as members of the AGNATHA.

conodont


  • noun

Words related to conodont

noun the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodonta

Related Words

  • tooth

noun small (2 inches long) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing cellular bone

Related Words

  • agnathan
  • jawless fish
  • jawless vertebrate
  • Conodonta
  • Conodontophorida
  • order Conodonta
  • order Conodontophorida
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