Lower Cambrian echinoderm ossicles from the Fucoid Beds, northwest Scotland

Abstract
Synopsis: The Lower Cambrian Fucoid Beds of northwest Scotland contain a fauna that includes locally abundant, disarticulated, echinodern ossicles. These plates probably derive from an eocrinoid or some other, unknown primitive pelmatozoan. Available stratigraphic evidence indicates that the Fucoid Beds are Elankian or possibly upper Atdabanian, making this echinoderm one of the oldest known.