Sulcipentamerus (Pentamerida, Brachiopoda) from the Lower Silurian Washington Land Group, North Greenland
The brachiopod Sulcipentamerus, previously considered a common endemic pentameride genus in the Lower Silurian (Aeronian) of South China, is reported from largely coeval strata in the Hauge Bjerge, Ymers Gletcher and Odins Fjord formations (Washington Land Group) of North Greenland. Two species are present. In eastern North Greenland, S. cf. dorsoplanus occurs in carbonate strata of Aeronian – early Telychian age, whereas in the western region, a new species, S. lunatus sp. nov., is described.