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Welsh Wizard

Isle of Wight Bone

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Welsh Wizard

Hi

 

Can anyone help in iding this bone.

 

Its from Brook Bay, Isle of Wight. Lower Cretaceous.

 

thanks

 

Nick

40295B73-4469-4AA6-8300-41BEF66855BE.jpeg

13A8EC47-56BF-4FF2-9CBB-32A80EB06EB0.jpeg

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Welsh Wizard

2970EB19-5965-4594-B9C0-23BABD7EA23D.jpeg

7515274A-79EC-4C5A-A36A-1F8C5F2BC380.jpeg

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Welsh Wizard

Thanks Olaf for a brilliant response.

 

I thought it could be a partial crocodile skull or partial ankylosaur skull but wasn’t sure. It’s quite symmetrical which had me confused but it seems to contain some skull bones like a quadrate. Interestingly, the three holes go right through to the other side. The first photo I posted is looking down on the bone and the second photo is the opposite side ie the equivalent underside. They are pretty similar apart from one side is orange and the other side is pyritic.

 

I’ll have a look at your pictures and do some searching.

 

Thanks 

 

Nick

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LordTrilobite
1 hour ago, Welsh Wizard said:

It’s quite symmetrical which had me confused but it seems to contain some skull bones like a quadrate.

If my ID is correct then the quadrate doesn't seem to be included.

 

1 hour ago, Welsh Wizard said:

Interestingly, the three holes go right through to the other side. The first photo I posted is looking down on the bone and the second photo is the opposite side ie the equivalent underside.

They should if it's a braincase. Or rather, there should be mirror holes on both sides.

It might look like they are opposite sides of the same holes, but they'd be mirror holes on either side that enter the brain.

Your first photo would be the left side. The second would be the right side view I think from a slightly lower angle. The third photo I think is the back/posterior side where the neural canal enters the brain. The fourth photo would be the top of the braincase I think. I suspect there's a hole filled with matrix on the front side. Perhaps you can post a photo of that? So that would be the opposite side of the third photo.

 

 

Great find!

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Welsh Wizard

Thanks again.

 

Heres a photo of the other side.

 

Theres a large hole filled with sediment that I’ve been removing slowly.

 

Nick

 

 

770B216F-227A-4120-8E37-0E0EDABC0B29.jpeg

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Welsh Wizard

Another of the other side. Slightly better angle. I’ll do some more later as if I understand correct, what I think are the sides are the top and bottom and visa versa.

 

153FEB58-E009-4CEC-92CF-D3106FA096F6.thumb.jpeg.46f0ef984dda7c7aaf78398d2a21f209.jpeg

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Welsh Wizard

Thanks again

 

 

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LordTrilobite

Okay here's a really good paper that might be useful for you. It has some fantastic drawings of "Iguanodon" atherfieldensis (now Mantellisaurus atherfieldensis) that includes the braincase.

 

https://docs.google.com/viewer?url=http%3A%2F%2Fbiblio.naturalsciences.be%2Frbins-publications%2Fbulletin-of-the-royal-belgian-institute-of-natural-sciences-earth-sciences%2F56-1986%2Fbulletin-9&fname=IRScNB_P4084_00C17AP_56_Bulletin 9 -red.pdf&pdf=true

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Welsh Wizard

Thanks. That’s a really useful paper. Interestingly, I contacted David Norman yesterday. Just waiting for a reply. If I hear anything I’ll let you know.

 

Nick

 

 

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Welsh Wizard

Confirmed as a dinosaur brain-case

 

A big thank you to @LordTrilobite

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Tidgy's Dad

Amazing find! :)

Congratulations. 

And great work from Olaf, too! 

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