Belinuridae is an extinct family of arthropods belonging to the order

Xiphosura Xiphosura (; , in reference to its sword-like telson) is an order of arthropods related to arachnids. They are more commonly known as horseshoe crabs (a name applied more specifically to the only extant family, Horseshoe crab, Limulidae). They fir ...

. The family consists of several genera.

References

Xiphosura Prehistoric arthropod families {{Chelicerata-stub