Possible Tyrannosaurus rex or Nanotyrannus tooth?

[Sergiorex]

 I saw this listing for a tooth that has no serration but looks like it’s from a Tyrannosaurus rex or Nanotyrannus. Im leaning towards Nanotyrannus since it doesn’t seem robust, and the base is kinda like a rectangle. but it doesn’t appear to have the pinch and is quite long. It’s from powder river county, hell creek formation.  I wanted to see other opinions.

[Sergiorex]

To clarify the pinch is small not non existing 

[Sergiorex]

Oops forgot a pic of length, it’s almost 1.5 inches

Edited August 23, 2022 by Sergiorex

[FB003]

Pictures are rather poor but looks like a nano to me.

[Sergiorex]

Yea I’m pretty sure it’s nano too, I found the same tooth in an earlier listing with better pictures

[hadrosauridae]

Need better pictures.

[jikohr]

Is that this tooth by any chance? I sold it a month ago. It's an enamel-less Nano from Powder River County

[Sergiorex]

Yea it probably is