The complete ontogeny of Siberian stone pine (Pinus sibirica Du Tour) trees of the first after-fire generation is described for the regeneration and aged series of green mossy Siberian stone pine forests which are typical in West Siberian taiga. Classic scheme of ontogenetic periods is used. The ontogenetic states are described using quantitative and qualitative vegetative (including height, radial, and basal area increments) and generative (initiation and preservation of microstrobili and macrostrobili) parameters. The age changes are generalized into two schemes: i) morphological structure of the crown taking into account the patterns of origin of their elements and prevailing form trends and ii) tree growth and cone development rate.