First subfossil records of Daphnia headshields and shells (Anomopoda, Daphniidae) about 10 000 years old from northernmost Greenland, plus Alona guttata (Chydoridae)

Abstract

Silty pond sediments from Wulff Land in northernmost Greenland, radiocarbon dated 10480 BP, yielded many headshields, shells, and ephippia of Daphnia pulex, and headshields, shells, ephippia, and one postabdomen of Alona guttata. This is the first documentation of recognizable headshields and shells of Daphnia in the fossil record.