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rock chick
Hiya,

I found this a couple of weeks ago on the south side of Aust in a large piece of bone bed. I'm hoping its something cool like a sevenichthys or ichthyosaur tooth which has lost its tip or maybe a shark spine. Please could anyone help to ID. Also any advice on how to clean it up a little would be great. Vinegar?
Thank you

fossil aust feb 20.jpg
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Rhaetianpenarth207
It looks to long for svernichthys. Possibly ichthyosaur or plesiosaur. Let’s see what others think. I think I can see a bit of bone structure where the missing enamel should be.
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Rhaetianpenarth207
I’m not sure if vinegar is a good idea. It usually melts bone but I think it spares the teeth. If this is a shark spine, I’m not sure what vinegar will do to it. However from the pictures, it looks to conical to be a hybodont shark spine.
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Rhaetianpenarth207
I would perhaps lean towards a partial rooted plesiosaur tooth. But I’m not certain. Cool find! 😀
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Dirty Pete
I'd agree with R.penarth (plesiosaur tooth), seems to have a nice curve on it too. Careful with acid, the tooth core looks to have matrix in it which will dissolve causing the tooth to break apart. Shame the pointy bits missing, nice find all the same.

Pete
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rock chick
Cheers folks,
Thank you so much for identifying this.  I did secretly hope it might be a plesiosaur tooth but I thought I was just being fanciful. I'm very excited now. So it would be best to just leave it be and not try to clean the matrix out Pete?
Me thinks I need to go back to Aust and find some more goodies once the weather has improved.
Thanks again,
Carole
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rock chick
Cheers folks,
Thank you for the identification. I was secretly hoping it was a plesiosaur tooth but I thought I was just being fanciful. I'm so excited now.
So the advice is not to try and clean up the matrix or it may split Pete?
I have another Aust find from last year that I may post soon as you guys are so good at identifying.
Thanks again,
Carole
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Rhaetianpenarth207
The best way to go would be with professional tools but they are very expensive! However you could risk it with a hammer but I wouldn’t. I look forward to seeing your other finds 🙂!
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rock chick
Cheers folks,
Thank you for the identification. I was secretly hoping it was a plesiosaur tooth but I thought I was just being fanciful. I'm so excited now.
So the advice is not to try and clean up the matrix or it may split Pete?
I have another Aust find from last year that I may post soon as you guys are so good at identifying.
Thanks again,
Carole
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Dirty Pete
Hi Carole,
The central part has already been lost and from my experience these things tend to disintegrate with alarming ease. Maybe one of the preppers on here can advise you if you wanted to expose more of it. Personally I'd leave it as it is.
Good Luck,
Pete
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prep01
Hello Carole,you would need to carefully stabalise the tooth using a solution of Paraloid B72 before doing anything else.
Colin Huller
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P King Chef
Seriously I wouldn't even go near that with an air pen even when it has been stabilized, the vibration would just shatter it. You might be able to pick some of the looser matrix off along the edges but otherwise leave as is.
Looks like with tip it could have been 6cm, that's a big tooth, possibly pliosaur?
Plio tooth 004.jpg 

Here's a tip less plio tooth from Aust (tip drawn in on graph paper).

Fossils various 009.jpg 
A couple of small plesiosaur teeth for comparison.
Pete

At work I have to make a lot of sacrifices.
It's one of the benefits of being a Druid.
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fossiladdict
certainly looks like some potential to expose a little more, it looks like lower pectin bed which is flaky on the surface so should come away with a pin vise if you can not get access to an air grinder (DG) dental grinder approach. nice find by the way. like previous advice stabilise beforehand!
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rock chick
I think I will leave it alone for now as I really wouldn't want to damage it but will stabilise with Paraloid B72 (where do you get that from?) as suggested. A pliosaur tooth is even more exciting. Thanks Pete for showing me you beautiful teeth.Thank you all for checking this out for me🙂
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Rhaetianpenarth207
Wow! Just realised this tooth is huge! I wouldn’t do anything to it as teeth from Aust tend to shatter but even with Paraloid I wouldn’t take the risk with this spectacular specimen.
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Rhaetianpenarth207
Paraloid can be found on many places such as eBay.
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