Is this a fossil of a dinosaur tooth
Daniel, aged 7
Message was edited by: Luanne
Rhys hit the nail on the head when he said it was a coral. It looks very much like a coral from an extinct group called 'Rugose Corals'. They are common enough in Palaeozoic (250-550 million years ago) rocks and may well be something like Aulophyllum sp. it depends on where you found it- with that info we might be able to tell you how old it is and maybe a name.
There is a picture of one of these types of coral in the NHM picture library, there will be others if you have a look:
We actually took the fossil with us when we went to the Museum on Friday and Luanne in the Angela Marmond Centre identified it as a solitary coral!
The fossil was found in some gravel in a back garden in Swindon so could have come from anywhere.
Thank you for your replies.