conodont

Definitions

  • WordNet 3.6
    • n 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 cyclostomes
    • n conodont the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodonta
    • ***
Webster's Revised Unabridged Dictionary
    • n Conodont (Zoöl) 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.
    • ***
Century Dictionary and Cyclopedia
    • n conodont A small glistening fossil organism, discovered by Pander in Silurian and Devonian rocks in Russia, and subsequently observed in other strata in different localities, and variously supposed to be a tooth of a cyclostomous fish, or a spine, hooklet, or denticle of a mollusk or an a˙nnelid: so named from its conical tooth-like appearance. These organisms are certainly not teeth of any vertebrates, and are probably the remains of worms.
    • ***

Etymology

Webster's Revised Unabridged Dictionary
Gr. kw^nos cone + 'odoy`s 'odo`ntos, tooth