Ask For Claws ID Help

[Zomb Ren]

Hello, friends, I want to determine the species of this claw from Iren formation, Inner Mongolia? I know that there are oviraptor and potential Troodon in Iren formation. I think it most likely belongs to one of both? I really appreciate if someone can give me some clues.

[Zomb Ren]

I collected it from Iren Dabasu Formation.

[Troodon]

Nice find

 

Oviraptoroids and Troodontid's claws typically do not have that type of curvature on the blade and robust flexor tubercle.

I have two other options : a Dromaeosaurid which is not described but most likely in that deposits.   A more possible option is a Therizinosauroid/Therizinosaurid  which are known from that deposit. 

Here is one from Uzbekistan you can compare against.  I actually think this is a foot claw.  

 

[Zomb Ren]

13 minutes ago, Troodon said:

Nice find

 

Oviraptoroids and Troodontid's claws typically do not have that type of curvature on the blade and robust flexor tubercle.

I have two other options : a Dromaeosaurid which is not described but most likely in that deposits.   A more possible option is a Therizinosauroid/Therizinosaurid  which are known from that deposit. 

Here is one from Uzbekistan you can compare against.  I actually think this is a foot claw.  

 

Oh! Thanks for your opinion! Actually, I aolso think taht is a foot claw. However, I have one question about Therizinosauroid/Therizinosaurid. I think Therizinosauroid/Therizinosaurid claw is very huge, but this one is notb big enough.

[Dino Dad 81]

1 hour ago, Zomb Ren said:

Oh! Thanks for your opinion! Actually, I aolso think taht is a foot claw. However, I have one question about Therizinosauroid/Therizinosaurid. I think Therizinosauroid/Therizinosaurid claw is very huge, but this one is notb big enough.

 

They all had to be babies at one point or another. I believe we have a member with a 1" Spinosaurus hand claw--and it's complete, tip to base.

 

Nevertheless, I think dromie hand claw is in the running too. Here's a comparison to Velociraptor.

 

 

 

[Zomb Ren]

2 hours ago, Dino Dad 81 said:

 

They all had to be babies at one point or another. I believe we have a member with a 1" Spinosaurus hand claw--and it's complete, tip to base.

 

Nevertheless, I think dromie hand claw is in the running too. Here's a comparison to Velociraptor.

 

 

 

Wow! This Velociraptor claw really looks very similar to this sample! thank you! Very effective point of view!

[Troodon]

Without the proximal end you can only speculate which species it is.

 I suggested Therizinosaur because they have been described from your locality and its features were somewhat similar.  Juveniles can be the size of your claw.   Therizinosaur claws can be very small like Falcarius to super large like Therizinosaurus depending on age of deposit and location.

However, you cannot discount  Dromaeosaurids, who's claws typically can have the largest curvature. 

 

I did some research and found this.

Here is a figure of the hand of the  therizinosauroid, Erliansaurus bellamanus from the Iren Dabasu Formation, your locality.  The scale bar is 2 cm.

Digit I (left) with the large tubercle and curvature looks remarkably similar but so does the SMALLER digit II (center).

 

 

Xu Xing et al. (2002)

[Zomb Ren]

8 minutes ago, Troodon said:

Without the proximal end you can only speculate which species it is.

 I suggested Therizinosaur because they have been described from you locality and its features were somewhat similar.  Juveniles can be the size of your claw.   Therizinosaur claws can be very small like Falcarius to super large like Therizinosaurus depending on age of deposit and location.

However, you cannot discount  Dromaeosaurids, who's claws typically can have the largest curvature. 

 

I did some research and found this.

Here is a figure of the hand of the  therizinosauroid, Erliansaurus bellamanus from the Iren Dabasu Formation, your locality.  The scale bar is 2 cm.

Digit I (left) with the large tubercle and curvature looks remarkably similar but so does the SMALLER digit II (center).

 

 

Xu Xing et al. (2002)

wow! When I saw this picture, my eyes lit up. I think it has the characteristics of sizinosauroid digit II large tube and curvature, and its size is similar. Thank you very much for your opinion! This is especially important to me! Thanks again!