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Welsh Wizard

Dinosaur Vertebrae

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Welsh Wizard

Hi

 

im in the middle of prepping this dinosaur vertebrae and I’d appreciate help with ID.

 

Its from the early Cretaceous of the Isle of Wight.

 

The neural spine is with the vertebrae but has become broken and lies underneath the vertebrae as well

 

Thanks

 

Nick

 

222BFCFE-AA2F-4A56-928E-AB08D3BA8CC5.thumb.jpeg.0d733e115483557beefa0789ced6abd9.jpeg

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Welsh Wizard

Some prep done and a scale to show size:

 

DB5E6A96-A9B0-472E-85E6-4231D48D3BCF.thumb.jpeg.039a24049e7cf0bd4cd905f9a79224e1.jpeg

 

 

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Welsh Wizard

More images of the vert:

 

05DF7A5A-050F-44DF-AF58-540727459E52.thumb.jpeg.8b0448016720d27f17c158f5173bc074.jpeg

 

 

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Welsh Wizard

6C566854-F240-46C8-9704-17D0E2DF6E8F.thumb.jpeg.1c3376f355eaff7c0dda8bf9f9596f3a.jpeg

 

Part prepped end view

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Welsh Wizard

E75F695B-36D2-4BE4-B471-0E29D8D59F31.thumb.jpeg.e77cedb573acf8d9d8c11d18812b1b6c.jpeg

 

This is is the end of the spine underneath the vert

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Mike from North Queensland

Nice specimen not sure from what animal but the break looks recent, as in when specimen was removed from the ground so I would say it is the end of a neural arch from an associated vertebra.

There must be more of the specimen there. The other section of neural arch could be part of your vertebra.

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Welsh Wizard

Thanks Mike

 

the long spine attaches directly to the bit that’s attached to the vert. I’m going to separate them and then reattach. It’ll take  awhile. You can see how long the spine should be.

 

N

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Welsh Wizard

After lots of fiddling and then a whack with a hammer. Broken spine end removed from vert in one piece.

 

Any suggestions? I’m now thinking possible spinosaur?

 

99674A70-D4BA-4A79-84E6-228FDB486044.thumb.jpeg.c498e9e2d95d06fc3dc94ee0ab6322d1.jpeg

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Bobby Rico

Maybe @Troodon or @LordTrilobite could help. Interesting find btw. :dinothumb:

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Troodon

Attached image of a Dorsal from an Iguanodon for comparison 

 

IggyDors.thumb.jpg.5c99cb5da2556d942ef177ea6bcdf92c.jpg

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LordTrilobite

Are you sure these are from the same vertebra? If you are, then I would agree that Spinosaurid would be a possibility. The centrum looks like it's either dorsal or anterior caudal. Though it's hard to tell from these photos.

The spine if it's not associated looks like it could come from an Iguanodont, either dorsal or anterior caudal.

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Welsh Wizard

Hi

 

Thanks for the replies. They were attached in the same matrix but the spine was snapped. I’ve taken it out and I’m in the middle of prepping. The vert looks like this underneath. I did think iguanodon at first but the spine seems too long and the vert looks theropoddy but still not sure.

 

349493F4-A158-4E0E-A562-CDA8F87839B2.thumb.jpeg.a7587e52c2641f6b4e87d720300b2203.jpeg

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Welsh Wizard

I don’t know if you can see but I’ve managed to remove a small section of bone that was attached to the spine. This was where the spine had bent prior to fossilisation and snapped during extraction. It fits nicely in the gap. Now the slow job of grinding down the matrix begins as the bone doesn’t like vibration.

 

82F16289-5C56-4216-B6B1-FE629A41A51E.thumb.jpeg.5e2b0b8392f3b6e1a571843991f08a38.jpeg

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Welsh Wizard

Attached one broken bit to another and cleaned of the matrix. Not a million miles of being able to attach all of the spine together.

 

2B9B08D9-A964-4377-803F-69466EFC1A91.thumb.jpeg.8d3f3ff5a27db63e1560054d45e170be.jpeg

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Welsh Wizard

I’ve got an identification from the Isle of Wight.

 

Juvenile Mantellisaurus caudal vertebrae.

 

@Troodon and @LordTrilobite. Thanks for the suggestions.

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Welsh Wizard

Hi

 

Im going to join the two spine pieces together. I’ve bought this Apoxie Sculpt.

 

F0AD0412-846C-4A08-9F31-B94108701F27.thumb.jpeg.9f15801a7ee2c6f3df91c892dd307fc1.jpeg

 

Does it just fill gaps or will it act like a glue and provide support as the gap between the bits is too wide to glue.

 

Thanks

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Flx

I use apoxy a lot for dino fossils and it works very well. You can use apoxy like modeling clay which means there is no problem with large gaps.

Important: Make sure you mix the two components well before using it. Otherwise it will not harden.

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LordTrilobite
2 hours ago, Welsh Wizard said:

Hi

 

Im going to join the two spine pieces together. I’ve bought this Apoxie Sculpt.

 

F0AD0412-846C-4A08-9F31-B94108701F27.thumb.jpeg.9f15801a7ee2c6f3df91c892dd307fc1.jpeg

 

Does it just fill gaps or will it act like a glue and provide support as the gap between the bits is too wide to glue.

 

Thanks

I personally use magic sculpt but as far as I know this stuff is pretty similar. You'll probably need quite a lot since most of the neural arch is missing. You might want to make a metal armature first since there is so much to be reconstructed. Otherwise you'll likely have issues with sagging. I'd build this in stages, build a part, let it harden, and then build another part.

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Welsh Wizard
49 minutes ago, LordTrilobite said:

I personally use magic sculpt but as far as I know this stuff is pretty similar. You'll probably need quite a lot since most of the neural arch is missing. You might want to make a metal armature first since there is so much to be reconstructed. Otherwise you'll likely have issues with sagging. I'd build this in stages, build a part, let it harden, and then build another part.

 

Thanks im not going to rebuild the neural arch. Just repair the spine and make a metal support stand that will hold the vert and spine but will have a space where the arch was.

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LordTrilobite
16 minutes ago, Welsh Wizard said:

 

Thanks im not going to rebuild the neural arch. Just repair the spine and make a metal support stand that will hold the vert and spine but will have a space where the arch was.

Ah okay, yeah that's probably better. Otherwise there would be a lot of reconstruction work and more interpretation.

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trilo

That Apoxy Sculp is perfect and the right stuff for that job. As mentioned you have to mix it first - a bit through the fingers like chewing gum.

Please show some more pics after the job is done.

good luck

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Welsh Wizard

Some progress with the Apoxie Sculpt. I was a bit nervous to begin with but it’s really easy to use.

 

6D1771EF-7F40-4A0C-BF1A-D1A4E8839AB1.thumb.jpeg.d88c7108d9314655c8c5376a8556da94.jpeg

 

2C15A539-A6A1-41C1-920D-5EF2D62A19F8.thumb.jpeg.3d4bcd2826ee0d3c84bc722d1939139a.jpeg

 

The spine is 13 inches long but it would’ve been longer with the neural arch attached.

 

Nick

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