How does this Keichousaurus look to you all?

[aplomado]

This Keichousaurus looks different than most; am thinking of buying it.  What do you all think about it?  Anything fake looking about it?

 

 

[Tidgy's Dad]

Hmmm. 

Look at the digits on the left and right forelimbs.

Not very symmetrical looking to me. 

[aplomado]

7 minutes ago, Tidgy's Dad said:

Hmmm. 

Look at the digits on the left and right forelimbs.

Not very symmetrical looking to me. 

I noticed that it does look like its missing some finger bones.  I'm just concerned if it is natural or not.???

[Fossildude19]

Looks fine, to me, aside from missing some bones. 

Chip out of the neck, right leg bones missing, right digits missing some of left digits on forelimb and hind limb. 

 

      

[snolly50]

To my eye the defects signal an increased likelihood of authenticity. Judging from the photo alone (obviously) I would acquire a piece such as this, provided its cost met snolly's miserly expectations. In short, it looks like it might prep pretty, even with the missing bits.

[aplomado]

Does this look "unprepped"?  It doesn't appear to be ground like most of them.

[doushantuo]

manus & pes of K.hui

 

[Fossildude19]

8 minutes ago, aplomado said:

Does this look "unprepped"?  It doesn't appear to be ground like most of them.

Yes, this looks like it split that way, right out of the cliff. 

[Fossildude19]

10 minutes ago, doushantuo said:

manus & pes of K.hui

 

Citation please, Ben.   

[doushantuo]

Functional morphology and phylogeny of Keichousaurs hui

kebang lin/1994,thesis

[Fossildude19]

Just now, doushantuo said:

Functional morphology and phylogeny of Keichousaurs hui

kebang lin/1994,thesis

Thanks, Ben. 

[Seguidora-de-Isis]

In fact this matrix is a shale of lighter coloring than we are commonly accustomed to see from the Guanling Formation, Xingyi, in Guizhou, China. But believe me, it's 100% real and completely unprepared!

 

For you to have a better idea of what I'm talking about, see this fish that is currently deposited in my private collection. This fish (Asialepidotus shigyiensis) was discovered in Falang Formation, Langmu Village, Dazhai, Dingxiao, Guizhou Province, China, and as you can see, this fish also has a shale matrix with lighter coloring, and arrived here completely unprepared:

 

 

 

Unfortunately during the transport, one side of the matrix broke, and it arrived here in broken house, but still, this did not stop me from doing my best to make an excellent preparation:

 

 

 

As our dear friend Fossildude19 has wisely pointed out, this Keichousaurus you posted here is missing a few bones and is with other small problems, but this is excellent because it is a strong indicative that is real. In addition, I trust this seller blindly, because I bought with him this beautiful puppy of Keichousaurus that arrived safely here in the house, and was immediately deposited in my private collection:

 

 

 

 

And as you may note, this pup of Keichousaurus is prepared, and it is also in a shale matrix with a lighter coloring than usual, so do not worry about it my dear friend @aplomado!

 

And to finish, I give as example this other Keichousaurus that I bought from this same seller. Notice that it was a composition of two specimens:

 

 

 

 

And this seller is so honest, that he made it clear in the ad that was prepared in composition with two incomplete specimens. Rare honesty these days!

 

 

[Crazyhen]

This is a genuine specimen.  It is a natural form ie split from the slabs unprepped.  Some bones are left in the presumably broken negative slab and thus missing in this positive slab.  The slab is of a lighter color, what the locals call a white slab, less common than black ones.  

[Tidgy's Dad]

2 hours ago, Seguidora-de-Isis said:

In fact this matrix is a shale of lighter coloring than we are commonly accustomed to see from the Guanling Formation, Xingyi, in Guizhou, China. But believe me, it's 100% real and completely unprepared!

 

For you to have a better idea of what I'm talking about, see this fish that is currently deposited in my private collection. This fish (Asialepidotus shigyiensis) was discovered in Falang Formation, Langmu Village, Dazhai, Dingxiao, Guizhou Province, China, and as you can see, this fish also has a shale matrix with lighter coloring, and arrived here completely unprepared:

 

Unfortunately during the transport, one side of the matrix broke, and it arrived here in broken house, but still, this did not stop me from doing my best to make an excellent preparation:

As our dear friend Fossildude19 has wisely pointed out, this Keichousaurus you posted here is missing a few bones and is with other small problems, but this is excellent because it is a strong indicative that is real. In addition, I trust this seller blindly, because I bought with him this beautiful puppy of Keichousaurus that arrived safely here in the house, and was immediately deposited in my private collection:

And as you may note, this pup of Keichousaurus is prepared, and it is also in a shale matrix with a lighter coloring than usual, so do not worry about it my dear friend @aplomado!

 

And to finish, I give as example this other Keichousaurus that I bought from this same seller. Notice that it was a composition of two specimens:

 

And this seller is so honest, that he made it clear in the ad that was prepared in composition with two incomplete specimens. Rare honesty these days!

 

 

Excellent post as usual, with lots of great examples. 

I love the pep ob you've done on that lovely fish. 

And you composite Keichosaurus and the pup are smashing too! 

[FranzBernhard]

On 12/28/2018 at 5:28 PM, Seguidora-de-Isis said:

Notice that it was a composition of two specimens:

 

Are these parts of two different animals? Or is it one broken animal glued back together (similar coloration pattern of matrix, but maybe the matrix is "painted".)?
Franz Bernhard

[Pemphix]

8 hours ago, Crazyhen said:

This is a genuine specimen.  It is a natural form ie split from the slabs unprepped.  Some bones are left in the presumably broken negative slab and thus missing in this positive slab.  The slab is of a lighter color, what the locals call a white slab, less common than black ones.  

I agree, +1 for genuine

[Seguidora-de-Isis]

11 hours ago, Tidgy's Dad said:

Excellent post as usual, with lots of great examples. 

I love the pep ob you've done on that lovely fish. 

And you composite Keichosaurus and the pup are smashing too! 

 

Thank you for the compliments my dear friend @Tidgy's Dad!

 

Unfortunately I never know if Google translator is really able to show what I think, so to ease my insecurity, I try to offer as many examples as possible.

 

Huge hug for you my dear friend from so far away!

[Seguidora-de-Isis]

6 hours ago, FranzBernhard said:

Are these parts of two different animals? Or is it one broken animal glued back together (similar coloration pattern of matrix, but maybe the matrix is "painted".)?
Franz Bernhard

 

In fact this slab is composed of two incomplete specimens that have come together. The slab array was not painted. What occurs is that after the union of both parts, it was prepared with acid, and the acid scattered gave a single coloration equally in the matrix. I particularly enjoyed this restoration, because it is rarer a Keichousaurus in the dorsal position.

[aplomado]

Thanks folks!  I ordered it.

 

I was planning to display it as is.  But- could it be prepared more???

[Seguidora-de-Isis]

1 hour ago, aplomado said:

Thanks folks!  I ordered it.

 

I was planning to display it as is.  But- could it be prepared more???

 

Congratulations! Sweet acquisition my dear friend @aplomado!

 

Prepared more?

 

But this Keichousaurus you posted here is not prepared! Quite the opposite! It's the same way it was discovered!

 

See that this is quite similar to yours, because it was also completely unprepared:

 

 

And now after prepared:

 

 

Do you understand now?

 

Shale is an extremely fragile rock, that is, delicate and difficult to work on in the fossil preparation. In shale, never, never use water in preparation!

 

If you have no experience with fossil preparation then I can not recommend acids, compressed air drills, curettes and some other methods that require a little more experience ... Even more so when it comes to shale!

 

If you have no experience, I recommend using thin steel straw, that is, the same steel straw that women use in the kitchen:

 

 

With a small piece of steel straw, gently rub the bones of the Keichousaurus, but at the same time using a certain dosage of force on the fingers. And you will see that a thin sheet of shale surrounding the bones will disappear, and the bones will be visible and shiny. It's a method I recommend for beginners, I can guarantee it works and the result is wonderful!

[Bobby Rico]

Congratulations it a little beautify. You don’t see many unprepared and in it’s stunning natural state.

 

Cheers Bobby

[Crazyhen]

5 hours ago, aplomado said:

Thanks folks!  I ordered it.

 

I was planning to display it as is.  But- could it be prepared more???

I would not recommend prepping it.  Unprepped and natural forms are more difficult to obtain, and they retain the natural beauty and research values of the specimens.  Having said that, if you’d like the bones to appear darker and more shiny, our friend @Seguidora-de-Isis has taught us a very good way of prepping the specimen you bought.

[Seguidora-de-Isis]

2 hours ago, Crazyhen said:

I would not recommend prepping it.  Unprepped and natural forms are more difficult to obtain, and they retain the natural beauty and research values of the specimens.  Having said that, if you’d like the bones to appear darker and more shiny, our friend @Seguidora-de-Isis has taught us a very good way of prepping the specimen you bought.

 

Thank you my dear friend Crazyhen!

 

Ahhhhhh ... The good and old Keichousaurus ... One of the favorite fossils and most disputed by collectors around the world ... And to think that it is also one of the most abundant fossils on our planet, and that nonetheless always yields valuable discussions here at TFF, and we always have a lot to learn from each other. 

[Crazyhen]

I could not help showing a nice natural form specimen for comparison.  Note thus slab is called the hard slab by locals.  Unlike most shale, washing it in water does no harm to the slab.

[aplomado]

Crazyhen, that one is amazing!

 

Does is mine a "hard slab"or not?