FIGURE 6 in The cranial anatomy of Tenontosaurus tilletti Ostrom, 1970 (Dinosauria, Ornithopoda)

FIGURE 6. Ventral skull schematic (above) and photograph (below) of OMNH 58340. The schematic was reconstructed by digitally mirroring the left side of the rostrum and suspensorium in order to approximate the actual appearance of the skull. Natural fenestrae are shaded gray. Anterior is to the right. Abbreviations: bt - basal tubera of the basisphenoid; lt - lateral tubercle of the basioccipital; mt - median tubercle of the basioccipital;? - possible second lateral tubercle of the basioccipital.