Rex or Nano?

[jikohr]

Hi everyone!

I have my eye on a potential Rex but the seller isn't sure if it's a rex or a huge Nano. 

The measurements they gave are 1.75 x .6 x .37 Inches so about 4.46 x 1.52 x .94 cm. 

It's from powder River County Montana

The tooth is an anterior and the oval shaped base combined with it being that large of an anterior says rex to me, but I figured I'd seek a second opinion.

[carch_23]

Based one what I see from the photo provided, the base looks too oval and thick to be a nano so would say this is an anterior dentary of a rex as well.

 

 Lets wait for more experienced members just to confirm though ahah

Edited August 15, 2022 by carch_23