English: Photographs (a–d) and line drawings (e–h) of the skull of Tarchia tumanovae sp. nov. (MPC-D 100/1353). Photographs of the skull in (a) left lateral, (b) right lateral, (c) anterior, and (d) occipital views. Line drawings in (e) left lateral, (f) right lateral, (g) anterior, and (h) occipital views. Grey areas indicate damaged surfaces. apt A aperture A, apt C aperture C, asob anterior supraorbital caputegulum, fm foramen magnum, gr groove, inca internarial caputegulum, laca lacrimal caputegulum, lnca lateral nuchal caputegulum, loca loreal caputegulum, mnca medial nuchal caputegulum, mx maxilla, naca nasal caputegulum, oc occipital condyle, orb orbit, parocc paroccipital process, pmx premaxilla, pmxo premaxillary ornamentation, prfca prefrontal caputegulum, prot protuberance, psob posterior supraorbital caputegulum, pt pterygoid, q quadrate, qjh quadratojugal horn, sn n supranarial notch, snca supranarial caputegulum, sp small process between the foramen magnum and the nuchal shelf, sqh squamosal horn, v vomer.