SEM photographs of teeth of Squatina sp., NRM-PZ P15802, A, labial; B, lingual; C, profile; D, occlusal views; NRM-PZ P16237, E, labial; F, lingual; G, profile; H, occlusal views; NRM-PZ P16238, I, labial; J, lingual; K, profile; L, occlusal views; NRM-PZ P16239, M, labial; N, lingual; O, profile; P, occlusal views; NRM-PZ P16240, Q, labial; R, lingual; S, profile; T, occlusal views; NRM-PZ P15811, U, labial; V, lingual; W, profile; X, occlusal views. Scale bar equals 1 mm.