The most famous Altamira paintings are on the plafond - a low ceiling in one of the cave "vestibules" to the left from the entrance. The total area of the ceiling is about 100 sq. ms. Here the artist had skillfully combined pigment painting with the ceiling relief. The majority of more than 20 animal figures, (mainly bisons, though there are also a horse, a boar and a deer) is depicted on the natural bosses of the ceiling and so there comes out an impressive picture of bas-relief, embossed figures. When the palaeolithic age of the Altamira paintings had been generally accepted discussions of other problems started. In particular, was the Altamira ceiling painting the result of a single action ( in the terms of life of one man) and conception or was it a long accumulation of different depictions? Some investigators were sure that the Altamira ceiling is a sound compositional work. Though nobody said it directly but it was somehow implied that it was the work of one artist. It concerns not only the Altamira ceiling. The painting of the Niaux "Salon Noire" was also considered to be the work of one artist and only the ibex figure was admitted to be corrected later. Other specialists, A.P.Okladnikov for example, considered the Altamira ceiling to be the result of successive addition of depictions, originally not connected. The last results of the radiocarbon dating of some ceiling paintings showed that 200 - 500 years separate them.