a part of an extinct set of little ancient fishlike chordates, maintained mostly by means of their particular conelike teeth.
A fossil tooth of the chordate. Conodonts would be the many extensive Paleozoic microfossils and are also very important to biostratigraphic indexing.
some of a number of extinct fishlike chordates that had conelike teeth
A microfossil enamel of these an animal
A peculiar toothlike fossil of several types, found particularly in carboniferous stones. These types of fossils tend to be expected by some to-be the teeth of marsipobranch fishes, however they are probably the jaws of annelids.
A small glistening fossil organism, discovered by Pander in Silurian and Devonian stones in Russia, and later observed in other strata in different localities, and variously said 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 generally are most likely the keeps of worms.
tiny (2 inches lengthy) extinct eellike fish with a finned tail and a notochord and having cone-shaped teeth containing mobile bone tissue; belated Cambrian to late Triassic; possible predecessor of the cyclostomes
the little fossil cone-shaped tooth of a primitive vertebrate of order Conodonta