File:Lophosteus superbus tooth cushions 9.jpg

English: Virtual dissections in external view visualizing two first-generation tooth files and overlying stacks of resorption surfaces in tooth cushion GIT 760-3. (b) Rings of dentine remnant that overlap each other, shown with (a) their pulp cavities, and (c–f ) resorption surfaces of four rounds of shedding at the four largest tooth sites. Note that each tooth position moves lingually during ontogeny so that the stacks of resorption surfaces become oblique. Arrow, the connections between the first generation pulp cavities above the dentine rings. Lingual to the right. Scale bars, 0.1 mm, (a–f ) are to the same scale.