Yuepingia? sp., a ceratopygid trilobite from the upper Cambrian (Furongian) of Scandinavia

A single pygidium found in an ice-rafted loose boulder of coquinoid bituminous limestone represents an 'exotic' trilobite hitherto unknown from the Scandinavian Alum Shale Formation. The limestone, found on the east coast of Jutland, Denmark, also contains Leptoplastus paucisegmentatus, Parabolina spinulosa and Orusia lenticularis and derives from the upper Cambrian (Furongian) Leptoplastus paucisegmentatus Zone of Västergötland, south-central Sweden. The 'exotic' pygidium shows closest resemblance to the ceratopygid Yuepingia glabra, described from Alaska, and is treated as Yuepingia? sp. The Laurentian Y. glabra occurs in the Ptychaspis-Prosaukia Zone which corresponds in age to the Scandinavian Leptoplastus Superzone.