Fig. 8
From: Gymnodiadema and the Jurassic roots of the Arbacioida (stirodont echinoids)
Camera lucida drawings of plating in Dubarechinus despujolsi Lambert, 1937, NHM E76732a, from the Upper Pliensbachian, 4 km NE of Amellago, Morocco. a Apical disc, b adoral plating showing phyllode and basicoronal plate (shaded in grey). Scale bar 1 mm