 The third species ""H."" "benxiensis", based on specimen BXGM V0011, also comes from Liaoning.Because "H. jii" is the type species of its genus, and the other two species are not closely related to it, they will likely be renamed in the future.An additional species, "H. atavismus", was named in 2016 based on a small specimen XHPM 1009.