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 ?
Revision of Silurian vertebrate biozones and their correlation with the conodont succession.
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., 2012 for references).
Our focus in this study is on the conodonts that we extracted from this geographically restricted lens of shale overlying the Bucktown Coal.
Nowlan, G.S., and Thurlow, J.G., 1987, The significance of Middle Ordovician conodonts from the Buchans Group, in Kirkham, R.V., ed., Buchans Geology, Newfoundland: Geological Survey of Canada, Paper 86-24, p.
-- 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.
Last year, scientists at Leicester University in England demonstrated that enigmatic fossils known as conodonts in fact represent the earliest known vertebrates.
However, in collaboration with colleagues he has been studying various fossil groups such as chitinozoans, acritarchs, brachiopods, conodonts, early vertebrates, tabulate corals, stromatoporoids and other typical members of Palaeozoic faunas.
Sweet (1970) studied the uppermost Permian and lower Triassic conodonts of the Salt Range and Trans Indus Range.
For instance, Martinez-Perez and Valenzuela-Rios (2014) describe the adaptive radiation during the Early Devonian of polygnathid conodonts from the Spanish Central Pyrenees, with the identification of several new species.
Several reports have been concerned with the palaeontology of foraminifera, corals, brachiopods, conodonts and cephalopods of the Ali Bashi Formation and formations from the same stage in Alborz and Abade.