Asteroschema rubrum Lyman, 1879 (IDSSE-EEB-SW0072) A, B lateral arm plate (external, internal), C outer arm spine (middle), D arm spine (distal), E skin from dorsal arm base (rounded to somewhat cone shaped granular ossicles), F–J vertebrae; F proximal view, G distal view, H lateral view, I dorsal view, J ventral view. Abbreviations: d dorsal, de depression, dist distal, lac lateral ambulacral canals, mo muscle opening, no nerve opening, pb podial basin, prox proximal, st secondary teeth, v ventral. Scale bars: 800 µm (C); 500 µm (A, F, G); 300 µm (B, E, H–J); 200 µm (D).