Fig. 7
From: Gymnodiadema and the Jurassic roots of the Arbacioida (stirodont echinoids)
Dubarechinus despujolsi Lambert, 1937, NHM E76732f; Upper Pliensbachian, 4 km NE of Amellago, Morocco; a oral view, b apical view, c lateral view. Scale bar 5 mm