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299 Views 2 Replies Last post: Dec 30, 2013 10:40 AM by Paleoworld-101 RSS
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Dec 30, 2013 2:22 AM

Toe Bone Identification?

Hello everyone,

 

I found this fossil toe bone recently (late November) at Bouldnor beach on the Isle of Wight. It is presumably from the Hamstead formation, about 30-32 million years old (Oligocene) and either comes from some kind of crocodile, turtle or mammal.

 

It measures 35mm in length.

 

I was wondering if anyone would be able to help me narrow down the animal it possibly comes from? I think it is mammalian of some kind but am not 100% sure. Crocodile is still a possibility but i think it is too big to be turtle. The most common mammals in the area after a bit of research were artiodactyl anthracothere's such as Bothriodon and Elomeryx but i have been unable to find images of similar specimens from these animals on the internet to compare to. There are a lot of other mammals known from this formation too but again i have not found anything to compare with.

 

I would really like to know what this bone comes from so appreciate any input.

 

Thankyou!

 

-Paleoworld-101

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    Dec 30, 2013 10:20 AM (in response to Paleoworld-101)
    Re: Toe Bone Identification?

    This is certainly a 'toe' bone and to be more precise a proximal phalanx, the bone closest to the foot/hand. The phalanx looks asymetyrical in a similar way to even toed ungulate 'toe' bones and I wonder if that is what you have here. I am not convinved that this is fossil, the medullary bone is still quite aerated which to me would suggest something more recent; either modern or ice age. Take a look at deer including reindeer.

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