Hell Creek Ornithomimid metatarsal?

[TeethCollector]

This is from Hell Creek formation and 8 inches long. Seller named this 'Struthiomimus'.

I compared it with some examples of ornithomimids from Hell Creek and I think this is a 3rd metatarsal of an ornithomimid.. If someone can verify?

 

Thanks

[Troodon]

This is Digit III metatarsal of an Anzu wyliei.  I have an two associated partial feet with all the metatarsals and its a pretty good match.  Struthiomimus tarsals "top photo" are not flat but have a center ridge and much longer.  Yours looks nice.

 

Here is a complete one to compare against

[TeethCollector]

 

3 hours ago, Troodon said:

This is Digit III metatarsal of an Anzu wyliei.  I have an two associated partial feet with all the metatarsals and its a pretty good match.  Struthiomimus tarsals "top photo" are not flat but have a center ridge and much longer.  Yours looks nice.

 

Here is a complete one to compare against

 

 

Thank you @Troodon , I'm surprised that the part that I got is from an Anzu.. That was unexpected.

 

And, I found an interesting source. This paragraph is from the Canadian Journal of Earth Sciences, Tsujimura et al, 2021, 'Metatarsals of a large caenagnathid cf. Anzu wyliei (Theropoda: Oviraptorosauria) from the Hell Creek Formation in South Dakota, U.S.A.'

 

'The taxonomic referral of each described bone is herein discussed. First, the most systematically distinguishing feature observed on the metatarsal III (NSM PV 21086) is a proximally-pinched and dorsoplantarly-flattened shaft. Among theropods with the arctometatarsalian condition (Holtz, 1995), a dorsoplantarly-flat shaft of the metatarsal III is regarded a feature unique to Caenagnathidae (Funston et al., 2016), present in such species as Chirostenotes pergracilis, Elmisaurus rarus and Citipes elegans (Osmólska, 1981; Currie and Russell, 1988; Currie, 1989; Funston et al., 2016). In addition, cruciate ridges developed on the plantar aspect of the shaft are also considered a caenagnathid characteristic (Funston et al., 2016). These features present in NSM PV 21086 indicates that this specimen belongs to a caenagnathid.'

 

So I guess the first photo of my example is the plantar view, since it clearly shows the cruciate ridges as you mentioned?

[Troodon]

That was a very recent paper but the specimens on it are not well perserved,  missing both ends why I showed you mine.

 

Here is a complete left foot set that are fused together at the proximal end.