Fig. 6 in A New Middle Devonian Arthrodire (Placoderm Fish) from the Broken River Area, Queensland

Fig. 6. Left trunk armour bones of the Late Devonian brachythoracid Dunkleosteus, arranged to show overlap relations (not to scale). (A,D) ADL plate in lateral and internal views (reversed images from Heintz, 1932: figs. 46–n>47); (B) PDL plate, and (C) PL plate, both in external view (from Heintz, 1932: figs. 49, 54).