Title: Superprocesses and McKean-Vlasov equations with creation of mass Author: L. Overbeck Date: January, 1995 Abstract: Weak solutions of McKean-Vlasov equations with creation of mass are given in terms of superprocesses. The solutions can be approximated by a sequence of non-interacting superprocesses or by the mean-field of multitype superprocesses with mean-field interaction. The latter approximation is associated with a propagation of chaos statement for weakly interacting multitype superprocesses.