conodont


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co·no·dont

 (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.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

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]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.conodont - the tiny fossil cone-shaped tooth of a primitive vertebrate of order Conodonta
tooth - 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 cyclostomes
agnathan, jawless fish, jawless vertebrate - eel-shaped vertebrate without jaws or paired appendages including the cyclostomes and some extinct forms
Conodonta, Conodontophorida, order Conodonta, order Conodontophorida - extinct order of primitive vertebrates; the precise taxonomy is not clear; in some classifications considered a separate phylum
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
Lithostratigraphy, conodont biostratigraphy and depositional environment of the Middle Devonian (Givetian) to Early Carboniferous (Tournaisian) Lipak Formation in the Pin Valley (NW India).
Revision of Silurian vertebrate biozones and their correlation with the conodont succession.
Straka, "Conodont evidence of age of Goddard and springer formations, Ardmore Basin, Oklahoma," AAPG Bulletin, vol.
The conodont fauna suggest that the PT boundary coincides with the disconformity at the Chhidru-Mianwali formations but the palynological assemblages from the upper-most Chhidru Formation have affinities with Permian as well as Griesbachian (basal Early Triassic).
The objectives of our investigation of the conodonts of the Desmoinesian Bucktown Coal Member of the Dugger Formation in the eastern part of the Illinois Basin in Indiana included describing the conodonts, furthering the development of a stable Pennsylvanian conodont taxonomy, interpreting paleonvironments, and continuing the establishment of regional correlations in the Midwest.
There were several metres of thin to medium-bedded Claraia vermicular limestone inter-bedded with coloured shale above the key bed; this belonged to the Early Triassic, based on a study of conodont fragments.
Preliminary report on conodont and Sm-Nd isotope data from Upper Ordovician Red River strata (Herald and Yeoman formations) in the Williston Basin, Berkley et al Midale 12-2-7-11W2, southeastern Saskatchewan.
"Conodont Biostratigraphy of Marine Units above the Type Tebo Coal, Henry County, Mo." GSA Abstracts with Programs 42(2).
Other chapters offer a detailed analysis of the marine platform-deltaic system of Argentina's San Rafael Block and the upper Devonian miospore and conodont zone correlation in western Europe.
Although unconformities separate these carbonate units (the Walberg Unconformity separates the Columbus Limestone from the underlying Salina undifferentiated and the australis conodont zone is unrecorded in Central Ohio [Sparling 1983, 1985] between the Columbus Limestone and the overlying Delaware Limestone), the Silurian and Devonian carbonates act as a single hydrologic unit, confined below by Ordovician shale-rich units.
In terms of North Atlantic conodont succession the stage seems to correspond to the uppermost part of the Pygodus anserinus Zone, the Prioniodus variabilis (most part of the stage) and to the lowermost Prioniodus gerdae subzones of the Amorphognathus tvaerensis Zone (Mannil 1986)".