Greenland,
is described and minted the Lodin El\' Formation. The sedimentary sequence consists of sorted sand and silt ovcrlain by diamicton containing erratic boulders. Both units contain ill siw molluscs and foraminiferal assemblages. The sediments occur as an erosional remnant of local distribution, covered by Holocene deltaic sand, and probably rest on JUrHssic shale. The thickness is c. 40 metres. The fomlation is dated faunistically by its foraminiferal faunas, which arc correlated with occurrences in the North Sea and on Baffin Island. The suggested age is supported by amino acid analyses of mollusc shells. The Lodin Elv Formation records the earliest known evidence of glaciation and arctic conditions in Greenland in
post-Precambrian time.