Found in the cliff collapse pile on the west beach at Lyme Regis, I know it is a bone as it is light and has the honeycomb effect, but can anyone say what it is and if it is a fossil or just a newsih bone? It measures about 8 cm long by 4cm depth.
Good find! but although I don't know what it is from I would say it is a 'sub fossil' going by the looks of it.
It doe's look to be water rolled and worn away by the environment it has been deposited into.
It looks fairly modern to me, pehaps a few years old (especially as you comment on it being light in weight).
But I can't argue with Tabfish calling it a sub-fossil, since that covers a wide range of fossilliness!
I could kick myself because I took the wife and grandson fossiling to mappleton on the Holderness coast were I found a very similar specimen to yours.
I had my hands full! and I did not take any pictures of the bone.
It too was white and water rolled about 100mm across the widest point.