Abstract
A biostratigraphic study of exceptionally well‐preserved dinoflagellate assemblages of Maastrichtian and Danian age from southwestern Sweden and southeastern Denmark has provided an opportunity for morphological analysis of the stratigraphically important species, Carpatella cornuta Grigorovich 1969. The paratabulation pattern of this species is shown to be essentially identical to that of other species having a Ventriosum pattern in the Aptiana‐Ventriosum complex of Helenes (1986). The generic and specific descriptions are formally emended, and a neotype is designated.