Mystery Pleistocene Incisor ID help, Horse? Something else?

[jikohr]

Hi everyone!

 

This one is bugging me. I acquired a big batch of Florida horse teeth recently including some incisors, but this one stands out. It's the same length as the others but the chewing surface (apologies if that's not the correct term for incisor surfaces) is different and it's so much thinner despite being the same length. The last picture shows a comparison to one I know is a horse incisor that's about the same length (about 5 cm).

 

So what do you all think? Is it still horse? Maybe just a different horse than good old Equus sp.?

Any insight is appreciated as always!

[fossilus]

Deciduous?

[jikohr]

9 minutes ago, fossilus said:

Deciduous?

That did cross my mind, but would it still be the same length?

[fossilus]

13 hours ago, jikohr said:

That did cross my mind, but would it still be the same length?

I don't have any deciduous incisors to compare, just molars which tend to be somewhat shorter and narrower in cross section than permanent. (But within the length range of permanent)

@Harry Pristis

@Shellseeker

May know better than I.

[Shellseeker]

19 hours ago, fossilus said:

I don't have any deciduous incisors to compare, just molars which tend to be somewhat shorter and narrower in cross section than permanent. (But within the length range of permanent)

@Harry Pristis

@Shellseeker

May know better than I.

I also have not found/seen such a tooth,  and without a comparison tooth,  all I can tell is that it is horse. I find the photo, TexasEquineDentist instructive.