A Family of fusion systems related to the groups $\mathrm{Sp}_4(p^a)$   and $\mathrm{G}_2(p^a)$
  A family of exotic fusion systems generalizing the group fusion systems on Sylow $p$-subgroups of $\mathrm{G}_2(p^a)$ and $\mathrm{Sp}_4(p^a)$ is constructed. 
Christopher Parker, Gernot Stroth
math.GR