Fig. 3
Lillithaster lamentatiofelium sp. nov. from the Peedee Formation (upper Maastrichtian, Upper Cretaceous) at the road ramp construction site in North Myrtle Beach (Horry County, South Carolina). a MnhnL OPH050 (holotype), dissociated proximal lateral arm plate in external (1) and internal (2) views, and with details of spine articulations in ventro-distal (3) and dorso-distal (4) views. b NHMM 2018 011 (paratype), dissociated median lateral arm plate in external (1) and internal (2) views, and with details of spine articulations in ventro-distal (3) and dorso-distal (4) views. MO muscle opening, NO nerve opening, R ridge. Scale bars equal 0.2Â mm