Conodonts


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Related to Conodonts: Ostracoderms, Acanthodians

Conodonts

 

fossil remains of animals whose classification is uncertain. They have been found in deposits from the Cambrian through the Triassic. Upper Cretaceous types have also been described. Conodonts have been found in a variety of forms—toothlike, comblike, or leaflike—with dimensions ranging from fractions of 1 mm to 2–3 mm. They are composed of calcium phosphate. They evidently were arranged in the bodies of the living organisms in the form of intricate complexes known as apparatus. Conodonts are important for the stratigraphy of Paleozoic deposits.

REFERENCE

Osnovy paleontologii: Bescheliustnye, ryby. Moscow, 1964.
References in periodicals archive ?
The same pattern of several diversification pulses of merely 1-2 Ma durations have also been reported in other taxonomic groups, such as conodonts, benthic foraminifers, and ichnofaunas (see Romano et al.
Our focus in this study is on the conodonts that we extracted from this geographically restricted lens of shale overlying the Bucktown Coal.
Conodonts from elements contained in the biozone were assigned to the following: Prioniodella prioniodellides, Hindeodella multihamat, Hindeodella nevadensis, Lonchodina nevadensis, Hindeodella triassica, Ligonodina triassica, Diplodella lautissima, Pachycladina oblique, Hadrodontina anceps, Ellisonia triassica, Hibardella subsymmertica, Parachirognathus geiseri, Prioniodella decrescens, Enantiognathus bitortus, Chirognathus sp.
1987, The significance of Middle Ordovician conodonts from the Buchans Group, in Kirkham, R.
Kozur (1990b) established this genus for conodonts exhibiting a gondolellid apparatus in which the platform elements display a subterminal pit, marginal ridges on the otherwise flat keel, and a distinct free blade.
Researchers from the University of Birmingham in England have identified a second group that reaches back to the time of conodonts, perhaps slightly earlier.
London, December 22 ( ANI ): Marine animal groups like ammonoids and conodonts already peaked three or four million years earlier, namely still during the Ear-ly Triassic, researchers say.
More lately conodonts are used as parallel fossil markers.
1985, Late Paleozoic conodonts from ribbon chert delineate imbricate thrusts within Antler Formation of the Slide Mountain terrane, central BC: Geology, v.
Frequency patterns of chitinozoans, scolecodonts, and conodonts in the upper Llandovery and lower Wenlock of the Paatsalu core, western Estonia.
Processing of additional outcrop and subsurface samples of the Bass Islands for conodonts could provide the solution to the Bass Islands identity crisis.