Paleocene gastropods from Nûgssuaq, West Greenland

Abstract

This catalogue illustrates 257 gastropod taxa from Paleocene deposits on the Nûgssuaq peninsula, West Greenland. Mesogastropods and neogastropods dominate, with 103 and 86 taxa respectively. There are 38 archaeogastropod taxa and 29 of Euthyneura, while one operculum is of unknown systematic position. Taxa are named at the generic level; no new names are introduced. Most of the fauna was collected from a single bed (Sonja Lens) within the Sonja Member of the Agatdal Formation. Faunal composition within this bed indicates a mixed assemblage with representatives from a variety of environments ranging from terrestrial (1 taxon) to shallow and deep marine, on soft and hard substrates.