Abstract

Rich Chitinozoa assemblages of the Trenton Group and of the Utica Formation at the Montmorency Falls (Province of Quebec) are compared to an assemblage of the Eastview Formation, at Ottawa (Province of Ontario). Fourteen species of which three are new (Conochitina naevia, C. kjellstromi and Ancyrochitina barbescens), and three subspecies are described.

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