I found this on the beach between Whitby and Sandsend, Yorkshire this past week. I believe it to be a mammal tooth, probably a herbivore molar but I'm not certain and I don't know what species. The material is flint-like and it is quite abraded, so it may not be from a local outcrop.
Thanks for any help!
I see no-one's had a chance to reply to your post yet. I don't know much about identifying fossils, but your specimen certainly reminds me of the elephant tooth in Investigate so perhaps it is a mammoth tooth? Until someone can identify it properly, you may wish to take a look at this website to see if you can find an answer there: http://www.nhm.ac.uk/jdsml/nature-online/earthlab/index.dsml
If you'd like to take a look (and touch, even better!) the elephant tooth in Inevstigate, it is in the basement of the Green Zone and is open all week 11am-4.30pm. There is also an interesting selection of British fossils in the Earth Lab gallery in the Red Zone.
Hopefully someone will be along to tell you what your specimen is soon!
This isn't a mammoth or elephant tooth I'm afraid. Although it does have a passing resemblance to the dentition of those molars seen from above, the structure is not right for a fossil tooth. They are not realy "flint-like" as you say and the cleavage is downwards and parallel to the lines across the dentition, not across the tooth. This is why fossil mammoth teeth they split into individual plates.
It's not what I'd call banded flint either though, although I do think the cause of the pattern is mineral and not fossil. To be honest, this is one of the majority of rocks that can't be identified from pictures alone, where so much info is lost. Do drop me an email on firstname.lastname@example.org if you's like to bring or post it in for a closer look.
My guess is sandstone/mudstone(/whatever) with cross bedding/graded bedding(/whatever).
Compare with the "yorkstone" http://www.flickr.com/photos/yorkstone/3375797304/in/photostream
or with weathered sandstone fromBeaumont Park http://www.wildyorkshire.co.uk/naturediary/images/geology/coal/beaumont/crossbed.jpg.