 On the other hand, the lineal kinship terminology developed either from bifurcate collateral ones (this development is most typical for Eurasia), or from generational systems.Note that these are not mere speculations, as Kryukov supported his conclusions with a wealth of diachronic data.Being a sinologist he paid special attention to the evolution of kinship terminology among the Chinese, thoroughly documenting the transition from the bifurcate merging to bifurcate collateral kinship terminology among them in the first millennium BC and its further development up to the present.