  The transverse mass spectra of Omega, J/psi and psi' in Pb+Pb collisions at
158 AGeV are studied within a hydrodynamical model of the quark gluon plasma
expansion and hadronization. The model reproduces the existing data with the
common hadronization parameters: temperature T=T_H = 170 MeV and average
collective transverse velocity v_T = 0.2.
