Morrison ceolurosaur teeth

[Pterygotus]

These are being sold as ceolurosaur teeth from the Morrison formation in Moffat county, Colorado. Can anyone ID these? And which one looks as the highest in quality? There are 4 teeth.

[hemipristis]

I am a sucker for matrix pieces.  The matrix adds to the fossil's story.

[Troodon]

Are you asking if these teeth belong to the dinosaur Coelurus fragilis or to the group of dinosaurs known as Coelurosaurs?  There is no dinosaur species called ceolurosaur.  Either way they seem to large to fit either.   Like always photos alone are not adequate to TRY to identify Jurassic teeth.  Most likely Allosaurus or Torvosaurus but would need more info and photos to attempt to narrow it down.

 

If the second tooth has good serrations, cannot see from photo, its the best tooth.

[Pterygotus]

20 hours ago, Troodon said:

Are you asking if these teeth belong to the dinosaur Coelurus fragilis or to the group of dinosaurs known as Coelurosaurs?  There is no dinosaur species called ceolurosaur.  Either way they seem to large to fit either.   Like always photos alone are not adequate to TRY to identify Jurassic teeth.  Most likely Allosaurus or Torvosaurus but would need more info and photos to attempt to narrow it down.

 

If the second tooth has good serrations, cannot see from photo, its the best tooth.

It appears to have serrations in this picture.