The first objects of the Paleolithic in Siberia were discovered in 1871 by Cherskiy I. D. in Irkutsk on the first Paleolithic object in Russia – the Voyenniy (War) Hospital site. During XX–XXI in Irkutsk and nearby areas were discovered several new Paleolithic sites – Mamony II–III, Schapova I, Gerasimova I, Sedova. Some of them were rich in art items. This is the case of the Mamony II site. In just two years on the 24 m2 three items were found. Due to a combination of technomorphological appearance with the presence of items made of agalmolite, the closest analogue to the Mamony II is the Gerasimova I site. Moreover, besides their technomorphological specifics, one of the special aspect of Irkutsk' Late Paleolithic objects is the sedimentaion condition. Both Mamony II and Gerasimova I sites are the places with a difficult stratigraphy. Brought together, this leads to the assumption of a common local cultural and chronological community. In contrast to the Altai and Cis-Baikal sites the items here are presented in form of stone industries, thus being a unique combination.