CONODONT

conodont

(noun) 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 cyclostomes

conodont

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

Source: WordNet® 3.1


Etymology

Noun

conodont (plural conodonts)

Any of several extinct fish-like chordates having cone-like teeth.

A microfossil tooth of such an animal.

Source: Wiktionary


Co"no*dont, n. Etym: [Gr. (Zoöl.)

Definition: A peculiar toothlike fossil of many forms, found especially in carboniferous rocks. Such fossils are supposed by some to be the teeth of marsipobranch fishes, but they are probably the jaws of annelids.

Source: Webster’s Unabridged Dictionary 1913 Edition



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Word of the Day

29 April 2024

SUBDUCTION

(noun) a geological process in which one edge of a crustal plate is forced sideways and downward into the mantle below another plate


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