FIGURE 9 in New semionotiform (Neopterygii) from the Tlayúa Quarry (Early Cretaceous, Albian), Mexico

FIGURE 9. Tlayuamichin itztli gen. et sp. nov., details of the skull in IGM 6719. A, posterior part of the skull showing multiple opercular ossifications and the peculiar shape of the suboperculum in this specimen. B, detailed photograph of the dermopterotic bone; the arrow points to the peculiar anteroventral process of this bone in the new taxon. C, same photograph as in B, but in this case the arrows point to the pores of the preopercular sensory canal in the preoperculum (below), suborbital (middle) and dermopterotic (above). Scale bars equal = 10 mm.