Cruziana pectinata Seilacher, 1994

Diagnosis: Rusophyciform and cruzianaeform trilobite burrows of the semiplicata group, in which multiple exopodal scratches with up to 14 parallel claw marks are the most prominent feature. In contrast with forms of the rugosa group, however, there is also a median zone of stronger endopodal scratches that meet in the midline at a much wider angle.