Help needed Identifying what appears to be piece of large fossilized bone

[Chris Kimo]

I've also recently found what appears to be a large segment of fossilized bone combing the coast of Yorkshire at the bottom of a cliff. Could just be a rock with a similar shape for all I know but it looks like a fragment to a larger piece of bone. Any help would be greatly appreciated before I decide to discard it. Thanks guys! 

[Chris Kimo]

[ynot]

Looks like a chert nodule, not a bone.

[Chris Kimo]

Thanks for your help! much appreciated. O well. found some nice ammonite specimens that day anyways so didn't go home empty handed. Here is a few 

[ynot]

Nice ammonites. I would be stoked to find those.

[Mark Kmiecik]

Very cool ammonite finds. Congrats.