A few theropod teeth

[FF7_Yuffie]

Hello, I have my eye on a few teeth. If someone can take a look and see that they all look ok, are as described etc, that would be great?

 

1 - A Tyrannosaur premax from Two Medicine. 2.2 cm -- No county known, unfortunately. I know this is a tricky formation that overlaps many counties, so I may leave this one if it cn't be confirmed as being from there via preservation/colorisation.

 

2 - Tyrannosaur tooth from Judith River. Lewistown, Montana. 1.7cm, sold as a juvenile. The crack visible seems like just a minor bit of damage and isn't anything to worry about? It doesn't seem like it goes through to the other side.

 

I'll do another post with others.

 

[FF7_Yuffie]

3 - Afrovenator Touraren Formation,  Agadez, Niger. Am I right that this is just the tip? 2.1cm

 

4 - This I have my doubts about. Majungasaurus from Maevarano, Mahajanga Province. Shape seems a little off compared to a couple of others I've seen--but of course, they could have been misidentified instead. Plus the size, 1cm, seems small. 

 

 

 

Thanks for taking a look.

[Troodon]

First two look okay.   Would need a lingual view to see if that first tooth is a premax if thats a concern.  Premaxillary cross-section should be D shaped not oval..The black color of the first one is more typical of the TMF. 

[FF7_Yuffie]

6 minutes ago, Troodon said:

First two look okay.   Would need a lingual view to see if that first tooth is a premax if thats a concern.  Premaxillary cross-section should be D shaped not oval..The black color of the first one is more typical of the TMF. 

 

Cheers, I forgot to mention first tooth is sold as premax. There are a few other pics, I'll post them shortly.

[Troodon]

The 3rd tooth is indeed just the tip.  Its probably an Afro but I'm reluctant to definitively say that on a tip.

The 4th tooth would need to see all its characteristics to try to ID it.

[FF7_Yuffie]

The other photos of the premax.

[FF7_Yuffie]

4th tooth, here is the rest of the photos available. If there's any other views, I can request them if needed. 

 

 

Thanks for taking a look

 

[Troodon]

I think its a dentary tooth

 

Thanks but this is what is required to give it a shot.  No guarantees 

 

[FF7_Yuffie]

Thanks. I'll get in touch with the seller. See if I can get the info needed on it.

[FF7_Yuffie]

@Troodon

 

The seller has messaged me some measurements. Hope it's hopeful. I'll paste his whole message and attack a pair of pics he included.

 

So crown height is: 1cm
Crown base length is: 7mm
Crown base width is: 4mm

Now the difficult ones, the serrations are very fine & with the tooth being so small it was difficult to get these, I’ll attach some pictures so you can do your own counts. Here’s what I got;
Distal serrations per 5mm: 19

The mesial were especially hard as you can see, I counted 4 per 1mm so in 5mm it would be 20 although it’s probably the same as the distal.
 

[Troodon]

Thank you for the information.   Its a small tooth but the characteristics are close to a Majungasaurus so it could be from a juvenile.

[FF7_Yuffie]

Thanks for the help. I'll throw a bid in for it and likely one of the Tyrannosaurs too. 

 

Thanks for taking a look. Appreciate it.