Stratigraphic and taxonomic significance of Tusoteuthis longa Logan (Coleoidea, Teuthida) from the Pembina Member, Pierre Shale (Campanian), of Manitoba

Abstract

The fossilized gladii of six squid from the Pembina Member of the Pierre Shale (Upper Cretaceous, Campanian) of southern Manitoba are referred to Tusoteuthis longa Logan, 1898, a species previously reported only from the Niobrara Formation of Kansas. The characters used to identify the genus are reviewed and it is referred to the family Kelaenidae. Documentation of these specimens extends the range of both the genus and the family to the Campanian of Canada.