Four species of olenelloid trilobites characterized by advanced or robust genal spines are described from the lower Cambrian Rabbit Point Formation (Cambrian Series 2, Stage 4) of eastern Devon Island, representing the most diverse assemblage of olenelloids yet described from Arctic Canada. New taxa: Bristolia kurtzi n. sp., Paranephrolenellus cowiei n. sp., Siciliolenellus fritzi n. gen. and n. sp.

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