Giant beaver ?

[boonieguy]

Found this on a gravel bar in north west Missouri a week ago .   Figured it was from a beaver but hadn't did a size comparison till today .  Seems a bit big for run of the mil beaver these days .  

[FossilDudeCO]

 some more pictures may help.

Chewing surface and the root end particularly.

 

I am thinking it could possibly be sloth. Don't know if those are in Missouri though.

[boonieguy]

Here are a few more pics . 

[Rockwood]

1 hour ago, boonieguy said:

  Seems a bit big for run of the mil beaver these days .  

Way too.

[FossilDudeCO]

oh wow, not sloth...im out on this one!

 

[Fruitbat]

It looks like Castoroides sp. to ME!  Nice find!

 

-Joe

[doushantuo]

rodent(dipoides)

[doushantuo]

giant rodent

(HULBERT)

[abyssunder]

Sure it looks like a Giant Beaver tooth, if I compare it with Castoroides leiseyorum, but possibly belongs to C. ohioensis.

 

 

 

[doushantuo]

castorid teeth

[doushantuo]

I trust Joe on this one,given that his library contains Korth,Samuels.Stefen etc

the Hulbert I posted is informative,to say the least

[abyssunder]

I agree with Joe, but maybe you could try to make an assessment regarding to the species level?

[Harry Pristis]

For comparison:

 

 

[doushantuo]

stefen,ZJLS

stecastorodentvariabildentitvj.1096-3642.2008.00467.x.pdf

Great pix,Harry.

If only everyone would post occlusal surfaces that clearly

[CBOB]

Wow, great find.  Congrats!

[boonieguy]

Thanks everyone!

it was nice to find something besides bovid and horse teeth for a change . 

It had an iridescent glow laying out on the rocks in the sunshine.   

[calhounensis]

I believe C. leiseyorum and C. ohioensis are now both considered C. dilophidus.

[garyc]

Beautiful tooth! That's one on my bucket list