Tremarctos floridanus?

[Dino Dad 81]

Hi all,

 

Another thread going on right now gets into what to make of carinae on potential cat/bear teeth and it made me want to see if you have any thoughts on this tooth. It is thought to be Tremarctos floridanus.

• From the pleistocene of Santa Fe River, Florida
• 2" long
• Seems to have the Side and Posterior carinae/cusp

 

Thanks!!

 

 

 

 

 

 

 

[Harry Pristis]

Looks to me to be from a Canis edwardi.

 

[Dino Dad 81]

Thanks, @Harry Pristis! I suppose the Spectacled Bear or Canis Dirus was a bit more fun, but, regardless, I only bought it because of the colors and curves.

[Meganeura]

11 minutes ago, Dino Dad 81 said:

Thanks, @Harry Pristis! I suppose the Spectacled Bear or Canis Dirus was a bit more fun, but, regardless, I only bought it because of the colors and curves.

C. edwardii is honestly rarer and thus (In my opinion) cooler than Dire Wolf. Dire Wolf is... pretty snarge common, as far as pleistocene canids go.

[Dino Dad 81]

3 hours ago, Meganeura said:

C. edwardii is honestly rarer and thus (In my opinion) cooler than Dire Wolf. Dire Wolf is... pretty snarge common, as far as pleistocene canids go.

 

That's very interesting, thanks for sharing @Meganeura. I figured the bigger predator probably had the lower headcount. Perhaps there's a preservation bias.

[Dino Dad 81]

@Meganeura Just out of curiosity, how does it stack up against T. floridanus?

[Lorne Ledger]

looks like bear to me, a bit too small for tremarctos in my opinion - could be black bear by the size

[Meganeura]

6 hours ago, Dino Dad 81 said:

@Meganeura Just out of curiosity, how does it stack up against T. floridanus?

Well I’ll put it this way - I’ve found 2 Tremarctos molars, 1 Ursus Americanus premolar, 1 bear partial molar. For dire wolf, I’ve found an M2, a p2, and 2 partial P4’s. For Edwardii, still none.  

[Meganeura]

6 hours ago, Lorne Ledger said:

looks like bear to me, a bit too small for tremarctos in my opinion - could be black bear by the size

They were actually about the same size as each other. Not a significant enough size difference to go either way.

Edited January 11, 2023 by Meganeura

[Harry Pristis]

For comparison:

 

[Shellseeker]

16 hours ago, Harry Pristis said:

Looks to me to be from a Canis edwardi.

 

I think Harry is correct, He usually is....

 

Harry,  I am kind of interested in that "lingual carina"  .  Do you have a sense of which carnivores might have that distinctive feature ?

[Harry Pristis]

No, Jack, I've never done such a survey.

[Dino Dad 81]

Are these similarly misidentified as Tremarctos floridanus? The last one looks beefier, but is smaller. Maybe a young Canis Dirus?

 

1.6"

 

 

3"

 

 

 

1.4"