  Using a constituent quark model we study the mass and decay channels of meson
meson and meson baryon structures in the charm sector.
  We show that the $X(3872)$ and $X(3940)$ resonances can be described as mixed
charmonium-molecular states with $J^{PC}=1^{++}$, whereas the $X(3915)$ and the
$Y(3940)$ can be assigned to similar mixed states with $J^{PC}=0^{++}$.
  In the baryon spectrum we identify the $\Lambda^+_c(2940)$ as a $D^*N$
molecule with $(I)J^P=(0)3/2^-$ and the recently reported $X_c(3250)$ as a
$D^*\Delta$ resonance with $(I)J^P=(1)5/2^-$ or $(I)J^P=(2)3/2^-$.
