Name : Isorophus africanus
Age : Ordovician, Kataoua Formation
Location (the place the fossil has been found) : El Kaid Errami, Maroc
Dimensions: 9,4 × 6,1 × 2.4 cm
Poids: 100 g

This slab is as found .It is all natural and it has no kind of manipulation , or dye or anything else added.The edrioasteroid has a size of 13 mm.