We found this when walking along margate beach. We have no ideas what it could be? it has a long spikey tail, a soine, a long ish nose and many small teeth. Any ideas would help greatly with out curiosity.
Looks like the skin etc remnants of 1 of our rays or skates, & the 3rd photo shows the inside jaws, as in http://content.lib.washington.edu/cdm4/item_viewer.php?CISOROOT=/fishimages&CISOPTR=46118&CISOBOX=1&REC=7
I agree with Rhossilian, this is the remains of a ray or skate. From the distinctive thorn-like structures along the tail I'd hazard a guess at the Thornback ray, Raja clavata. The Shark Trust has extremely good and informative fact sheets on rays and skates available here (rays and skates are closely related to sharks and like them have a cartiliginous skeleton).
Hope that helps get you somewhat closer to an id.
A very good link Jen, & new to me, & I reckon does point to Thonback ray as the only solution with it's 'buckler thorns' & long tail, especially when combined with Marlin's description at http://www.marlin.ac.uk/speciesinformation.php?speciesID=4229# , including "Dorsally the body is covered with coarse prickles,... In addition, large, backward pointing thorns (called bucklers) are scattered over the dorsal surface, each of which has a thick button-like base. These thorns are particularly numerous on the tail and in females present in a line along the back".