pelecypod

Groups familiar from the Ordovician like brachiopods, bryozoans, corals, gastropods, a nautiloid, and a pelecypod were among them.

In 1958, Alan McGugan, et al., identified a new species of the pelecypod Megalodon in a river cliff of Exshaw Creek and gave the new specific name M. banffensis, for the proximity of the Banff area.

Other invertebrates included and a brachiopod, thirty species of bryozoans, two genera of corals, five species of crustaceans, 120 species of pelecypod, four species of scaphopod, two genera of starfish, and two genera of worms.