  The anti-D meson self-energy is evaluated self-consistently, using unitarized
coupled-channel theory, by computing the in-medium meson-baryon T-matrix in the
C=-1,S=0 sector. The heavy pseudo-scalar and heavy vector mesons, anti-D and
anti-D^*, are treated on equal footing as required by heavy quark spin
symmetry. Results for energy levels and widths of D^- mesic atoms in 12C, 40Ca,
118Sn and 208Pb are presented. The spectrum contains states of atomic and of
nuclear types for all nuclei. anti-D^0--nucleus bound states are also obtained.
We find that, after electromagnetic and nuclear cascade, these systems end up
with the anti-D bound in the nucleus, either as a meson or as part of a exotic
anti-D N (pentaquark) loosely bound state.
