Help identify tooth

[GodProtect]

Good day.
I could not identify this tooth, help me figure it out.
Found in sediments Lower Carboniferous (Mississippian Subsystem), Serpukhovian Stage in the career of "Zaborye" is not far from Moscow.

 

 

Sorry for my english, best regards Alexander

[old bones]

Welcome to the Forum. Your English is fine.   Beautiful  tooth. I can't help with ID but someone who can will be along soon.

[Fossildude19]

@Archie  @TNCollector  @JimB88 @Strepsodus

[Strepsodus]

Hi.  I think Psephodus sp is most likely.

 

 

 

Daniel

[JimB88]

looks more like a chomatodus type Chimaeriforme tooth to me.

[TNCollector]

It is definitely not Psephodus. I think it is a Eugeneodontid-type tooth, something belonging to the genus Campodus. The bumps along the subline of the crown indicate it was probably in a spiraled jaw, very indicative of Eugeneodontids. If it was in my collection, I would label it as a Campodus tooth.

 

Chomatodus also has a similar root structure, but the morphology of the crown didn't fit that in my opinion. 

 

See this for comparison: https://commons.m.wikimedia.org/wiki/File:Campodus_variabilis_tooth.jpg

[Archie]

Beautiful tooth! This isn't one I'm familiar with, my first thoughts were either a Chomatodus sp. or Venustodus sp. but I think Jim is right with some kind of Campodus sp.

 

[GodProtect]

On 6/7/2017 at 8:55 PM, TNCollector said:

It is definitely not Psephodus. I think it is a Eugeneodontid-type tooth, something belonging to the genus Campodus. The bumps along the subline of the crown indicate it was probably in a spiraled jaw, very indicative of Eugeneodontids. If it was in my collection, I would label it as a Campodus tooth

 

Chomatodus also has a similar root structure, but the morphology of the crown didn't fit that in my opinion. 

 

See this for comparison: https://commons.m.wikimedia.org/wiki/File:Campodus_variabilis_tooth.jpg

I spent a lot of time but did not find teeth Campodus with such a crown structure.

If you have any examples, please send them.

[TNCollector]

The link I attached shows a spiral of them with a very similar crown structure, but I agree that it is not exact. Truth is that you will probably never find an exact ID with this tooth, it is almost guaranteed to be a new species. Carboniferous shark teeth are not understood very well due to the lack of complete skeletons or in most cases, any skeletal material at all. I feel very confident that this tooth belongs to the order Eugeneodontida based off of the basic morphology of the tooth, and I think Campodus is a decent placeholder genus based off of similar specimens, but I will keep an eye out on any publications that I see for something more similar.