  The structure and evolution of Primordial Antimatter domains and Dark matter
objects are analysed. Relativistic low-density antimatter domains are
described. The Relativistic FRW perfect-fluid solution is found for the
characterization of i) ultra-high density antimatter domains, ii) high-density
antimatter domains, and iii) dense anti-matter domains. The possible
sub-domains structures is analyzed. The structures evolved to the time of
galaxy formation are outlined. Comparison is given with other primordial
celestial objects. The features of antistars are outlined. In the case of WIMP
dark matter clumps, the mechanisms of their survival to the present time are
discussed. The cosmological features of neutrino clumping due to fifth force
are examined.
