Tail Lights Stopped Working.

[Denebola]

My bulb warning light has come on and I've just discovered that none of my tail lights are working on my Lucida. The brake lights, the headlights and front side lights work, just not the four tail lights.

I've checked all the fuses in the large fuse box in the passenger footwell and all are ok. Any ideas as to the solution to this problem would be gratefully received. Kind regards.