Trilobites and gastropods from Silurian carbonate mounds in Valdemar Glückstadt Land, eastern North Greenland

Abstract

Silurian carbonate mounds were reported from Valdemar Glückstadt Land, eastern North Greenland (lat. 82°N, long. 22°W) by Peel (1980) folIowing reconnaissance geological mapping in 1979. The localities were revisited during August 1980 when a complex of carbonate mounds and patch reefs rooted in bedded Silurian limestone and over/ain by black graptoliferous shales of latest Ear/y Silurian age, similar to those known elsewhere from eastern North Greenland (Christie & Peel, 1977; Lane & Thomas, 1979; Mabillard, 1980) was noted. Trilobites and gastropods are well represented in the mound faunas, together with stromatoporoids, favositid and rugose corais, pentamerid and other brachiopods, cephalopods and rare bivalves. Crinoid debris is abundant.