Figure 36 in The comparative osteology and phylogenetic relationships of African and South American lungfishes (Sarcopterygii: Dipnoi)

Figure 36. Articulated left and right mandibles of Protopterus annectens, TMM M 2494: A, anterior view; B, lateral view. Anterior to the left. Scale bar: 5 mm. A, angular; PR, prearticular; PRa, anterior process of the prearticular; PRan, angular process of the prearticular; PRANfen, fenestera between prearticular and angular; PRb, middle process of the prearticular; PRc, posterior process of the prearticular; PRcor, coronoid process of the prearticular; PRsym, prearticular symphysis; PRTa, anterior ridge of the prearticular tooth plate; PRTb, middle ridge of the prearticular tooth plate; PRTc, posterior ridge of the prearticular tooth plate.