Hadimopanella apicata from the Lower Cambrian of western North Greenland

Abstract

Microscopic button-shaped phosphatic problematic fossils referred to Hadimopanella apicata Wrona 1982 are described from Lower Cambrian carbonates in the Nyeboe Land fault zone, western North Greenland. The species is otherwise known from southern Spitsbergen, and in both areas it is associated with Serrodiscus, Calodiscus, olenellids and other fossils. Unlike the type suite, Greenland specimens of Hadimopanella apicata show a tendency toward differentiation of several nodes in the apical area of the supposed outer surface.