Abstract:A'~CHA ACHAB Znstitut national de la recherche scient@que, INRS-Gdoressources, C.P. 7500, Sainte-Foy (Qudbec), Canada G1V 4C7 R e~u le 4 juillet 1986 Revision acceptte le 2 dCcembre 1986 Les chitinozoaires de certains niveaux des groupes de Trenton, d'Utica et de Lorraine des Basses-Terres du Saint-Laurent sont dCcrits. Les assemblages CtudiBs contiement des e s e c e s bien connues du Caradoc suptrieur et de 1'Ashgill mais aussi des espkces nouvelles telles Conochitina pygmaea et Hercochitina cristafa. La dis… Show more
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