  In this talk, we present the latest experimental results on heavy flavour
spectroscopy at the LHCb detector. The first observation of two baryonic
resonances is reported in the $\Xi_b^{(-,0)} \pi^+\pi^-$ final states and a
study of charmonium decays to $K_s^0 K \pi$ in $B \rightarrow (K_s^0 K \pi) K$
decays is presented.
