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Achab, 1978

Achab, A. 1978. Chitinozoaires de l'Ordovicien supérieur - formations de Vauréal et de Ellis Bay - de l'Ile d'Anticosti, Québec. Palinologia, número extraordinario 1, 1-19. | DETAILS

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ID4365
ReferenceAchab, 1978
AuthorAchab, A.
Year1978
TitleChitinozoaires de l'Ordovicien supérieur - formations de Vauréal et de Ellis Bay - de l'Ile d'Anticosti, Québec
JournalPalinologia, número extraordinario
Number1
pgs.1-19
Source typearticle in journal
LanguageFrench
Abstract

Chitinozoans from the Vaureal and Ellis Bay Formations have been studied. An analysis of the chitinozoan microfauna indicates that the Vaureal Formation is characterized by several species of the genus Hercochitina. The Ellis Bay Formation, on the other hand shows a less diversified assemblage in which Conochitina gamachiana is dominant. An important variation of the microfauna is observed in beds at the base of Member 6 of the Ellis Bay Formation. This variation possibly indicates the Ordovician-Silurian boundary on Anticosti Island. Four new chitinozoa species, Conochitina gamachiana, C. concava, Ancyrochitina longispina and Lathrochitina concinna are described.


New taxa described

RankTaxon nameBelongs to
SpeciesAncyrochitina longispina Achab, 1978Ancyrochitina
SpeciesBelonechitina gamachiana (Achab, 1978)Belonechitina