  In the spirit of Berestycki and Lions, we prove the existence of saddle type
nodal solutions for the Choquard equation \[
  -\Delta u + u= \big(I_\alpha \ast F(u)\big)F'(u)\qquad \text{ in
}\;\mathbb{R}^N \] where $N\geq 2$ and $I_\alpha$ is the Riesz potential of
order $\alpha\in (0,N)$. Without any compact setting, we construct saddle
solutions in a unified way for the Choquard equation whose nodal domains are of
cone shapes demonstrating Coxeter's symmetric configurations in $\mathbb R^N$.
Moreover, if $F'$ is odd and has constant sign on $(0,+\infty)$, then the
saddle solution maintains signed on the fundamental domain of the corresponding
Coxeter group and receives opposite signs on any two adjacent domains. These
results further complete the variational framework in constructing
sign-changing solutions for the Choquard equation but still require a quadratic
or super-quadratic growth on $F$ near the origin.
