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Raptor9468

I just got this bone fragment refered to as a scute from either an ankylosaur or a turtle from the lance formation. Upon further inspection,I dont see the typical ankylosaur blood vessels or the turtle carapace type features.

 

20200517_204836.jpg

20200517_204853.jpg

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Raptor9468

20200517_204818.jpg

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Raptor9468

0.85cm thick at the thickest spot

20200517_205134.jpg

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Raptor9468

Is this a bone fragment of something else,or it is a scute of some sort?

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Fossildude19

Unidentifiable bone fragment. 

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GeschWhat

Interesting. I would say scute, but not my area of expertise. The only time I have seen mineralized fibers on the underside of an osteoderm are on from Upper Triassic Pseudosuchians. :popcorn:

 

@jpc

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jpc

Those are some pretty tough photos to work with.  I have seen the texture seen in the second photo in croc scuutes as well as ankylosaur scutes and ceratopsian frill pieces.  

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Raptor9468

Magnified photos

Top

 

rsz_20200518_081440.jpg

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Raptor9468

The lower part

I would like to thank everyone for their help in this Id

rsz_20200518_082048.jpg

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jpc

I still can't ID it beyond my last post.  But thanks for the close ups.  

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Raptor9468

Just for those who want to see the bone structure

rsz_20200519_164324.jpg

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Raptor9468

This might be a dumb question but

Does ceratopsian have mineralized fibers ln the exterior of their bones?

Are juvenile creatures common in fossils?

Sorry for bothering but I've had trouble finding anything that looks like this with thickness under 1cm.

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Troodon

Not seeing much just a bone fragment but not an osteoderm

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GeschWhat
16 hours ago, Raptor9468 said:

This might be a dumb question but

Does ceratopsian have mineralized fibers ln the exterior of their bones?

Are juvenile creatures common in fossils?

Sorry for bothering but I've had trouble finding anything that looks like this with thickness under 1cm.

I haven't seen mineralized fibers like this on ceratopsian bones nor have I've seen a juvenile. I have only dug in the Lance Formation twice and prepped a few bones in the lab. @jpc and @Troodon are the ones to talk to. I wonder if the ornamentation sometimes seen on the edge of some juvenile ceratopsian frills might be thin like that. Jack Horner did an interesting TED Talk on the subject of juveniles that may interest you. 

 

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Troodon

Have not seen it either

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