conodont

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Related to Conodonts: Ostracoderms, Acanthodians

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.]

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]

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]
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
References in periodicals archive ?
Researchers use the sharp fossilized teeth of lamprey-like creatures called conodonts to date the rock in which the mercury was deposited.
The Caradocian (Ordovician)-Wenlock (Silurian) Takche Formation of the Spiti region, northwestern Himalaya, is a highly fossiliferous litho-unit which has yielded bryozoans, coral reefs, conodonts, algae, ostracods and trilobites (Hayden 1904; Reed 1912; Bhargava & Bassi 1986, 1998; Suttner 2003, 2007).
The researchers knew that surface temperatures rose about 10 degrees Celsius in the tropics because of previous scientific analysis of the fossilised teeth of eel-like creatures called conodonts. To run their model, researchers pumped volcanic greenhouse gases into their simulation to match temperature conditions at the end of the Permian period.
Churchill-Dickson (2007) reviewed vertebrate records from the Silurian--Devonian of Maine, noting Silurian records of 'fish teeth' (probably conodonts) from the Edmunds Formation and acanthodian spines from the Ames Knob Formation, as well as Devonian placoderm remains ('Asterolepis') from the Chapman Sandstone.
It was dated as Changsinghian based on conodonts (Wardlawand Mei, 1999) but palynological assemblages from the uppermost part of the Chhidru Formation give a Permian as well as Griesbachian (basal Triassic)age (Hermann et al., 2012).
(2000): Comparing oxygen isotope records of Silurian calcite and phosphate-d [sup.18]O compositions of brachiopods and conodonts. Geochimica et Cosmochimica Acta 64, 1859-1872.
Lower and Middle Triassic conodonts from the Jerus Limestone, Pahang, Peninsular Malaysia.
The first one took place 444 million years ago, when creatures like trilobites, which resembled horseshoe crabs, and conodonts, which looked like eels, roamed the oceans.
We collected conodonts from black and gray shale lenses containing limestone nodules lying immediately above the Bucktown Coal Member of the Dugger Formation (Pennsylvanian, Desmoinesian) in a Solar Sources Pride Creek pit 2 miles south of Petersburg in Pike County, Indiana.
Due a lack of macroscopic and microscopic fossils, especially Foraminifera, some uncertainties in conodonts' biostratigraphy have not been studied and clarified.
Among the creatures that vanished were eel-like fish called conodonts, early crocodilians, tree lizards and many broad-leaved plants.
Conodonts are extinct primitive vertebrates that attract widespread interest because of the insight they provide into the earliest vertebrate skeleton which they manifest as the mineralized elements.