Hell Creek Theropods help wanted

[Mesozoic Mike]

Howdy folks I'm still building my collection of Hell Creek fossils. This time I'm attempting to add three new specimens, that of Anzu Wyliei, Dakotaraptor, and a Troodon. I would be very grateful to get your opinion on the following fossils. The raptor teeth are labeled as "Dromeosaur Tooth" from Hell Creek I want to know if any of them look like Dakotaraptor teeth to you. As for the other two I simply want your opinion on whether or not they are genuine fossils. 

 

Thank you

 

Anzu claw

measures approx.  15/16″ long

 

Raptor Teeth

1

2

 

 

3

 

Toodon

 measures approx. 1/8″

 

Thanks again

[gigantoraptor]

The difference between Dakotaraptor and Nanotyrannus can only be known by a taking a denticle density. Stay away from the second tooth, the mesial carina is missing.

The tooth is from a Troodontid, but Troodon formosus itself is not longer valid. It's now known as Stenonychosaurus inequalis, but it's from the Judith River formation.

This tooth is from the HCF and the only Troodontid there is Pectinodon bakkeri.

[Troodon]

1)The claw is indeed that if an Anzu wyliei

2)In my opinion the teeth you are looking at are all Nanotyrannus because of the shape of the denticles and thickness of the crown.  Dakotaraptor teeth are "very" scarce and like gigantoraptor said you will have to have a complete crown with both serrated edges visible.  A density count will be needed as well as a knowing what the width and length is of the base to verify how compressed they are.

3)The last tooth is indeed a Troodontid but not Troodon instead a Pectinodon bakkeri.   There are two Troodontids present in the Hell Creek. P.  bakkeri and cf Troodon formosus.  I have many of both.   Troodon teeth look different and are much bigger than Pectinodon see image.   The name was deemed invalid by a new discovery in Alberta but since it was used for a long period of time it's  acceptable to use in the Hell Creek or Judith River and still valid.  These teeth come up for sale so if you want one be patient.

 

 

https://www.nature.com/articles/s41598-018-30085-6

The species Troodon formosus Leidy 185635 was originally established on a tooth from the Campanian Judith River Formation of Montana. In 1987, Currie revised the taxon and synonymized several subsequently named species into T. formosus. In 2017 van der Reest and Currie recognized that T. formosus as defined by Currie included two taxa, one of which they named Latenivenatrix mcmasterae and the other they referred to Stenonychosaurus inequalis. Given that the latter had already been synonymized into the senior T. formosus and remained unused for 30 years, Troodon formosus remains the proper name for this taxon, exclusive of L. mcmasterae, and we continue to use it here.