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Bow1980

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Reply with quote  #251 
Tried to tidy up a piece from above

2011-10-14_00004.jpg 

Looks like the right side of the humerus is missing? maybe cause of death or predation after death?
2011-10-15_00005.jpg 


 


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mudbug2

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Reply with quote  #252 


Hi Bow
Nice bones, good pictures well done....
Regards to all who share the passion Mudbug...

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Bow1980

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Reply with quote  #253 


Plesiosaur Jaw

Before



01Aug2011_4.jpg 


After
2011-10-21_00001.jpg 
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spider

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Reply with quote  #254 
The before and after shots really help explain what you found, Thanks.
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Reply with quote  #255 

You said it did not look much different to when you found it,methinks you lied, very nice piece,congrats.


 


steve


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mudbug2

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Reply with quote  #256 


Bow
 What a cracker well done, thats one hell of a find and congratulations on your prep work, thanks.
Regards to all who share the passion Mudbug...

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Naze Dave

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Reply with quote  #257 
Thats stunning bow, very very jealous indeed.
Thanks
Dave

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Reply with quote  #258 
Hi recently got into Fossil hunting thanks to my young son and following a recent trip to Lavernock we wondered if anyone could help with the following 2 items.

Item 1 unsure if it anything at all but heres a couple of pictures





Item 2 looks like part of a shell but lad is certain it's a section of a fish





Any help much appreciated thanks.


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Bow1980

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Reply with quote  #259 

Couple more finds

Large Coprolite

2011-12-25_00001.jpg 



Large bone prob Plesi rib as spotted

2011-12-26_00002.jpg 

as excavated



2011-12-26_00001a.jpg 

Edited by Bow1980 2011-12-26 18:38:04
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Reply with quote  #260 
Only decent find at Lavernock on Saturday was a pair of Ichy tail verts that should clean up well.
Also pic of our regular bloke in boots who walks the beach from penarth to lavernock, looked quite nice when he was wearing fishnets-i'm going to have to start wearing my glasses as i'm a bit shortsighted and did not know it was a bloke the first four times i'd seen him untill my mate said it was a man,shortsighted can be handy when you stumble across a nude fella in the summer!

 

[attach:fileid=http://www.discussfossils.com/forum/uploads/1064/bone_3.jpg]

 

[attach:fileid=http://www.discussfossils.com/forum/uploads/1064/bone_14.jpg]

 

weird6.jpg 

 

steve

 

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Naze Dave

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Reply with quote  #261 
Steve thats quite a find, the verts arent bad either....lol
Thanks
Dave

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Reply with quote  #262 
Steve

 

May be a snap for mine (tail verts not man in drag). Nearly prepped but needs some air abrasion and tidying up, which I can't do myself.

 

Lavernock_tail_verts.jpg 

 

An ichthyosaur coracoid found in shales at St Mary's Well Bay:

 

Lavernock_Coracoid.jpg 



 

And the only thing I found at Lavernock over Christmas.........a bullet:

 

Lavernock_Bullet.jpg 

 

regards

 

Nick

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Bow1980

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Reply with quote  #263 
Great Ichthyosaur finds Nick.
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Reply with quote  #264 
Some Lavernock bone bed finds

 

Black_Plesiosaur_Vert.jpg 

 

Black Plesiosaur Vert

 

Rolled_Plesiosaur_Vert.jpg 

 

Rolled Plesiosaur Vert

 

Ichthyosaur_Vert.jpg 

 

Two articulated ichthyosaur verts that have split in half. It confused me as from the side it looks plesiosaur and from the front it looks ichthyosaur. It was only after examining closely that I could see the line between the verts

 

regards

 

Nick

 

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Reply with quote  #265 
Dear All

 

I found this last week in a big limestone block and it took me about 2 hours of hammering to remove it.

 

Only the central bit was showing and it was looking a bit battered and I wasn't sure if it was bone at first.

 

I've started extracting it and it looks like an ichthyosaur scapula but I not 100% sure and would welcome any suggestions or comments.

 

Scapula.jpg 

 

thanks

 

Nick

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prep01

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Reply with quote  #266 
Like the 'plectrum' as a scale - different!


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Reply with quote  #267 
Found a pyritized ammonite down Lavernock yesterday. Are these common or have any other members of the forum found any ?
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Reply with quote  #268 
Good ammonites are rare at Lavernock although there are many thousands of calcite ones there but are practicaly impossible to get a good one,i have only found two pyrite ammos there in 20 years.
 

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Reply with quote  #269 
So I take it they must be pretty rare. It was just lying there so im very happy with it. Can anyone give me tips on how to prepare it. Will pics help ?
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Bill G

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Reply with quote  #270 
Hi (dylhomme)?

 

Advice for prepping can only be given with pic's. Some pyritised specimens have growths of pyrite which can't be removed, without damaging them.

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Reply with quote  #271 

Nick,

Looks more like the coracoid of a small plesiosaur to me but very difficult to be sure. Was it found anywhere near the plesiosaur verts? Nice finds.

Paul


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Reply with quote  #272 
Hi Paul

 

You could be right. Not really sure what it is.

 

Below is a picture of the limb girdle from ichthyosaurus communis. The scapula are labelled as sc, clavicle as cl and coracoid as cor and the bones shown are more curved than my find.

 

Ichthyosaurus_communis_limb_girdle.jpg 

 

The following photo shows the scapula of a small ichthyosaur (1.5 m) that I've got from Runswick Bay. Again the bones are slightly different to my find from Lavernock. 

 

Scapula_Runswick_Bay.jpg 

 

The bone wasn't found anywhere near any plesiosaur verts. It was just an isolated find in a large rock

 

regards

 

Nick

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ophthalmosaur

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Reply with quote  #273 
Hi Nick

Lovely finds from Runswick. Yes, that's what made me think it might be a plessy coracoid since the right hand margin looks dead straight whereas the ichthy scapulae don't have a straight edge either side. Also the articulation area seems more 'hooked over'. On the other hand the occurence of ichthyosaur bones is greater isn't it? Either way its a nice specimen and keep them coming.

cheers!

Paul

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Bow1980

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Reply with quote  #274 
Couple of finds

Two Ichthyosaur Teeth, from the late triassic

2012-03-04_00001b.jpg 


2012-03-04_00002.jpg 


Unknown bone, also from late triassic material

2012-03-02_00003.jpg 

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Reply with quote  #275 
Nice teeth Bow, were they loose when you found them?
Thanks
Dave

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Bow1980

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Reply with quote  #276 
Dave, the teeth were in very crumbly shale, the teeth themselves are not very strong so i've had to put some palaroid on them them, to prevent them from just falling apart.


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Bow1980

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Reply with quote  #277 
Went to Lavernock last Sat for the low tide, a guy was hogging the bone bed, managed to find this small shark Fin spine though


2012-03-17_00007.jpg 


Had a go at prepping this item i found last August

Before:

13Aug2011_2.jpg 

13Aug2011_1.jpg 

Almost finished:

2012-03-17_00005.jpg 


2012-03-17_00002.jpg 


2012-03-17_00001.jpg 

2012-03-17_00004.jpg 


2012-03-17_00006.jpg 

2012-03-17_00003.jpg 

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Naze Dave

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Reply with quote  #278 
Very very nice indeed, thats a lovely shark spine and superb prep on the Icthyosaur. Is that the sclerotic ring in the 2nd to last pic?
Thanks
Dave

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rocktapper

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Reply with quote  #279 


Really nice ichy piece Bow and very well prepped - well done.
 
Cheers
  Mark
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Reply with quote  #280 

Very nice piece Bow ,great prep.


 


steve


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Reply with quote  #281 
Bow

That's really nice. Fantastic prepping, it looks just like a piece of art. 

Well done.

Nick

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Bow1980

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Reply with quote  #282 
Thanks all. Dave yes it's a sclerotic ring.
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Reply with quote  #283 

Lovely prep. work Bow. Amazing to see the sclerotic ring fully articulated but separate.  How many plates are there? Do you think this is Ichthyosaurus?

Keep them coming!

Paul


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Reply with quote  #284 
Beautiful piece, Bow, and ditto Paul on the sclerotic ring.


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Bow1980

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Reply with quote  #285 

Quote:
Originally Posted by ophthalmosaur

Lovely prep. work Bow. Amazing to see the sclerotic ring fully articulated but separate.  How many plates are there? Do you think this is Ichthyosaurus?

Keep them coming!

Paul




Thanks Paul, it's hard to tell but I think there could be roughly 22 plates. I'm not sure what type of Ichthyosaur it is, any suggestions are welcome. There's 69 verts after the last vert that has a single rib facet if that helps at all.
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Reply with quote  #286 

Bow,

The sclerotic plate count of Ichthyosaurus sp. is said to be about 13 and the tail bend + fluke vertebra count 44. Trouble is that the smallest fluke verts. are often lost (not in the case of your specimen it seems!). The paddle doesn't look quite right for Ichthyosaurus, with four digits in the second row. Snout does look particularly long and slender and the teeth small and slender (I presume that is the teeth that I can see). Its also very small (juvenile?). All in all I think it is something different but couldn't say what species it is.

Paul
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Bow1980

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Reply with quote  #287 
Thanks Paul, sadly no teeth around the snout, but there is a single tooth on another part. The tooth is complete and total length is 70mm but very thin.

I believe this paddle section i found earlier is from the same creature but with this being the forepaddle and the smaller one being the hindpaddle.

Are there any good books around on Ichthyosaurs which explain the differences between the species?

08Aug2011_1.jpg 
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Reply with quote  #288 
Hi Bow
We met on Penarth beach a while ago.  I loaned you my crack hammer as i recall!

The definitive work on ichthyosaurs is: A Handbook of Palaeoherpetology Part 8: Ichthyopterygia.  It's written by Chris McGowan and Ryosuke Motani.  Unfortunately it costs about 100 euros!  There's one in preparation about Plesiosaurs too.  Glen Storrs is the author of that one.

The Palaeontological association guide to the fossils of the lower Lias contains a few bits that might help but it's a bit light on the sort of detail you'd want.

You've been finding some lovely specimens.  Thanks for sharing the info.  

When we met i promised to share some pics of some of my finds.  Having just entered the 21st century and got myself on line i promise to do that in the next couple of weeks!

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Reply with quote  #289 

Hi Bow,

I endorse Old Rocker's comments re. the book that he recommends, otherwise known as the orange bible by ichthyosaur workers. It has a wealth of information from one who has studied many specimens 'hands on'. According to this book there are only 2 possibilities for the ID of your recent specimen (assuming that it comes from the lowermost beds of the lower jurassic). They are: Ichthyosaurus sp. and Leptonectes tenuirostris. Given the slender specimen tooth that you mentioned, and the slender rostrum and the wide spacing between the digits distally, I would lean toward the Leptonectes tenuirostris ID.

cheers

Paul

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Bow1980

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Reply with quote  #290 
Paul, thanks for your thoughts, I have the book mentioned (way too technical for me, although the pictures are great) and have just been looking at Leptonectes, you could be correct given that the back paddle does have a single phalange with a notch.

Old Rocker, I remember chatting to you, look forward to seeing your finds. I gave that site in Brackla you mentioned a visit, plenty of shells, tiny ammonites, echinoid and crinoid fragments but havn't spotted any bone as of yet.
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Bow1980

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Reply with quote  #291 
My first ammonite from lavernock. Id would be good, if anyone knows.

2012-04-08_00002.jpg 
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Reply with quote  #292 
Hi all

Here are some of my finds from Lavernock / St Mary's Well Bay.

This is the first nodule.

Nodule1asfound.jpg 

View of the Bottom face showing verts and other bone
[attach:fileid=uploads/1890/Nodule1longsideverts.jpg]

View of Top edge showing an assortment of bones.  I suspect that bones to the left are jaw bones in cross section.
Nodule1shortfacemisc.jpg 



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Old Rocker

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Reply with quote  #293 
I returned to the same spot the following day to try and find the other half of the nodule.  I didn't find the other half but found this instead.

Nodule as found, note paddle bones at top and tooth 2/3's way up.
Nodule2found.jpg 
Close up of paddle bone phalanges at top.
Nodule2Phalanges.jpg 
 Close up of tooth / jaw in bottom rhs edge
Nodule2distaltoothjaw.jpg 

Close up of bottom edge showing teeth, scapula, radius and ulna in cross section
Nodule2Scapulateeth.jpg 




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Old Rocker

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Reply with quote  #294 
I returned to the site a week later and this time i found the other half of the first nodule.  This is much more weathered and coated with algae but is an exact mirror image of the first nodule.  The verts are not very clear in the photo but they are there.

i've got some saving to do in order to pay for some prep work!
Nodule3verts.jpg 

I've scoured the surrounding area.  Found a single vert and neural arch but so far nothing else.  All three nodules are packed with bone material.

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Reply with quote  #295 
Very interesting, looks like an exciting find!
Thanks
Dave

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Old Rocker

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Reply with quote  #296 
Here are a few other bits collected from the Lavernock shales during the last year.


Plesiosaur tooth
IMG_0039.jpg 

Ichthyosaur tooth
IMG_0047.jpg 

Antiquilima succincta
IMG_0063.jpg 

Large Coprolite (Triassic)
IMG_0056a.jpg 






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prep01

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Reply with quote  #297 
Superb find! There's a few hours prepping there then!


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Reply with quote  #298 
Nice finds Old Rocker.

I was there last week.

I found 1 vert, some bits of rib and my son found a section of Ichthyosaur lower jaw from underneath eye (about 3 inches long).

I've had to resort to buying a couple of bits of Lavernock bone bed from a shop in Lyme Regis.

Regards

Nick

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Bow1980

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Reply with quote  #299 
Great finds old rocker
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Reply with quote  #300 
Nice finds,those nodules can have some great stuff in them. e.g.
hol_4.jpg  

 

 

steve

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