Ceratopsian frill fragment

[Maxaurus]

Hello guys,

 

I recently bought a triceratops ceratopsian frill fragment. The seller said it's a squamosal piece from Hell Creek Formation, Garfield County, Montana, USA. The size is 15x10x4,5cm

 

I read several threads about frills to check authenticity and I see important characteristics on this piece. The blood vessels and blood grooves (a bit smaller than on other frill fragments I saw) are visible. Also the thickness is good. So in my view it looks genuine.

 

What do you think about it?

 

Thanks and have a nice weekend.
Max

[Troodon]

I would call it Ceratopsian frill, nice pieces

[Maxaurus]

Thanks @Troodon

 

I have one question left...on the last four pictures you can see a noticable elevation, also with a different surface texture. Does anybody know what that could be? The thickness is also increased there.

 

Thank you

Max

[Troodon]

It all depends on what part of the skull that fragment is from and its age.  Look at Triceratops skulls online and you will see lots of variations as it gets closer to the center.