''Anticostiodus'' is an extinct genus of multielement
conodont
Conodonts, are an extinct group of marine jawless vertebrates belonging to the class Conodonta (from Ancient Greek κῶνος (''kōnos''), meaning " cone", and ὀδούς (''odoús''), meaning "tooth"). They are primarily known from their hard ...
s. Specimens have been described from the Lower Silurian (early
Aeronian
In the geologic timescale, the Aeronian is an geologic age, age of the Llandovery Epoch of the Silurian geologic period, Period of the Paleozoic geologic era, Era of the Phanerozoic geologic eon, Eon that began 440.8 ± 1.2 annum, Ma and ended 43 ...
) of
Gun River Formation of
Anticosti Island
Anticosti () is an island located between the Jacques Cartier and Honguedo Straits, in the Gulf of St. Lawrence, in L'Île-d'Anticosti (Municipality), Minganie MRC, Côte-Nord, Quebec, Canada.
UNESCO's World Heritage
On September 19, 2023, ...
, Quebec. Two species are included under the genus, ''Anticostiodus fahraeusi'' and ''Anticostiodus boltoni''. Both species occur near the base of the ''
Distomodus staurognathoides'' zone and in an open subtidal environment.
[Anticostiodus, a new multielement conodont genus from the Lower Silurian, Anticosti Island, Quebec. Shunxin Zhang and Christopher R. Barnes, Journal of Paleontology, Volume 74, Issue 04, July 2000, pages 662-669, ]
References
External links
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Prioniodontida genera
Fossils of Canada
Biota of Quebec
Silurian conodonts
Paleontology in Quebec
{{Conodont-stub