  We consider the ${\bar D}^{(*)}\Sigma_c^{(*)}$ states, together with $J/\psi
N$ and other coupled channels, and take an interaction consistent with heavy
quark spin symmetry, with the dynamical input obtained from an extension of the
local hidden gauge approach. By fitting only one parameter to the recent three
pentaquark states reported by the LHCb collaboration, we can reproduce the
three of them in base to the mass and the width, providing for them the quantum
numbers and approximate molecular structure as $1/2^-$ $\bar{D} \Sigma_c$,
$1/2^-$ $\bar{D}^* \Sigma_c$, and $3/2^-$ $\bar{D}^* \Sigma_c$, and isospin
$I=1/2$. We find another state around 4374 MeV, of $3/2^-$ $\bar{D} \Sigma_c^*$
structure, for which indications appear in the experimental spectrum. Two other
near degenerate states of $1/2^-$ $\bar{D}^* \Sigma_c^*$ and $3/2^-$ $\bar{D}^*
\Sigma_c^*$ nature are also found around 4520 MeV, which although less clear,
are not incompatible with the observed spectrum. In addition, a $5/2^-$ $\bar
D^* \Sigma_c^*$ state at the same energy appears, which however does not couple
to $J/\psi p$ in $S-$wave, and hence it is not expected to show up in the LHCb
experiment.
