Figure 6. A, C in The skeletal remains of the euryhaline sclerorhynchoid †Onchopristis (Elasmobranchii) from the 'Mid'-Cretaceous and their palaeontological implications

Figure 6. A, C, rostral denticles with multiple barbs bought in Morocco. A, denticle composed of two different denticles brought from a fossil dealer in Morocco NHMUK PV P74053. B, sagittal section of denticle, the section where the denticles were glued marked with an arrow (single barb base attached to a double barbed tip denticle). C, Double barb denticle brought from a fossil dealer in Morocco NHMUK PV P74053. D, sagittal section of that denticle revealing no modifications. Scale bar: 1 cm.