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58 Views 1 Reply Last post: May 18, 2018 9:16 AM by Dr T RSS
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May 17, 2018 10:18 PM

Tooth or very interesting erosion?

I found the attached canine tooth / rock in the River Mole in Leatherhead, Surrey.


It is either a fully fossilised tooth or a some very interesting erosion! .


Does anyone have any ideas?


There’s a photo of either side and the  battery is there for size compassion (it’s AAA) .

  • Currently Being Moderated
    May 18, 2018 9:16 AM (in response to LisaP)
    Re: Tooth or very interesting erosion?

    Hi Lisa - welcome to NaurePlus


    If you can't scratch this with something steel (screwdriver?) then it is a flint Trace Fossil.

    Not a tooth but the remains of a crustacean burrow made in the chalk seabed some 85 million years ago, then silicified and preserved as a flint cast - almost all flints have this origin.  Your has probably been recycled into river gravels from the Chalk of the Mole Valley between Leatherhead and Dorking.  You will find more if you walk the edges of local ploughed fields and maybe some flint echinoids (I used to live in Great Bookham).


    Here are some photos of flint burrow systems

    Flint burrow system.JPG

    Flint Thalassinoides - Durdle Door.JPG

    You may be interested in this article - Rt Clk to Open Link in New Tab, then + to make legible...

    2014 Mortimore on Flint.jpg

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