Late Middle–Early Late Ordovician chitinozoans from the base of the Amadjuak Formation, southern Baffin Island, Nunavut

A chitinozoan microfauna from one sample in the lower Amadjuak Formation in southern Baffin Island has yielded Acanthochitina cancellata Martin, Belonechitina kjellstromi (Martin), Belonechitina cf. capitata (Eisenack), Sphaerochitina gracgual Martin, and Sphaerochitina sp. This microfauna is correlated with the chitinozoan Acanthochitina cancellata Zone of Eastern Canada, suggesting a biostratigraphic position at the Shermanian–Edenian transition for the lower Amadjuak Formation.