Paleozoic fish tooth?

[gturner333]

I found this little tooth while going through some bulk sample from Jacksboro, TX, which is a Pennsylvanian area. I have found shark teeth there, but this looks more like a fish tooth. It reminds me of an Enchodus tooth, but I am not aware of any that were in the Paleozoic. Any ideas?

 

The scale hash marks are 1mm.

 

Thanks for any help.

[Miocene_Mason]

Looks sharky to me (take with a pinch of salt, I'm not an expert) but not like most I've seen in Paleozoic deposits (most are, for 

ack of a better word, lumpy-er)

[gturner333]

I agree. The ones i have have multiple cusps or, at the very least, more mass. Hopefully someone will recognize it. 

[Bullsnake]

Perhaps a cladodont cusp.

[DPS Ammonite]

Consider that this might be an exotic misplaced fossil shark tooth brought in by mother nature or a human. See recent post about Paleozoic silicified tabulate coral found at NSR: http://www.thefossilforum.com/index.php?/topic/78070-mosaic-of-crystal-north-sulphur-river/&tab=comments#comment-823867

 

[BobWill]

Dr. Maisey might be able to help if you send him a picture. That's also another one to ask Dr. Seuss about. She seems to have a lot of experts in many fields helping.

[westcoast]

5 hours ago, Bullsnake said:

Perhaps a cladodont cusp.

+1

[gturner333]

Although I can certainly see how some sort of cross-contamination could drop a non-paleozoic tooth into the mix, I can also see similarities with some of the cusps from cladodont teeth from pictures on the web. Here is a picture of specimens that came from France. The Glikmanius occidentalis shark has been found at Jacksboro.

[Plax]

too early for xiphodolamia? (or however it's spelt)

[Fossildude19]

11 minutes ago, Plax said:

too early for xiphodolamia? (or however it's spelt)

Xiphodolamia appears to have been an Eocene shark, so, yes -  too early.  

Cladodontid would be my guess.

[Plax]

man that was a serious cerebral flatulation! Was thinking Xenocanthus (again probably misspelled)