Pennsylvanian Lungfish Like Tooth fragment from a marine limestone (Solved NOT Lungfish - Poecilodus sp.)

[Samurai]

Location: Missouri

Age: Pennsylvanian 

Stratigraphy: Iola formation (Most likely Raytown Limestone Member) 

 

Here is an odd tooth fragment that I have come across. I have not really came across anything like it since I found it, but it reminds me of some lungfish teeth I have seen online like Sagenodus sp. 

 

Can anyone weigh in on this thought? 

 

 

Backside

 

More side profiles:

 

If it is a lungfish it must have had quite the story to end up in an offshore marine deposit but then again the whole limestone is kind of messed up due to having phosphate nodules in it so who knows. 

Edited 15 hours ago by Samurai
Solved

[Fossildude19]

Excellent find!

Looks lung-fishy to me.  @jdp

[Shellseeker]

Wow !  Less than once in a lifetime

[Samurai]

46 minutes ago, Fossildude19 said:

Excellent find!

Looks lung-fishy to me.  @jdp

I really hope so! Would love to hear Jdp's input on this. 

[Samurai]

1 hour ago, Shellseeker said:

Wow !  Less than once in a lifetime

It would be interesting if it is indeed

Edited 15 hours ago by Samurai

[jdp]

Not lungfish. This is holocephalan. Something like Poecilodus or something closely related? Regardless, definitely holocephalan and not lungfish.

[Samurai]

1 hour ago, jdp said:

Not lungfish. This is holocephalan. Something like Poecilodus or something closely related? Regardless, definitely holocephalan and not lungfish.

Ah ok Thank you. I knew it was too good to be true! it definitely fooled me. 

 

I never heard of the species before, is there some papers or a source I may use to better understand the fish of this age?

Edited 13 hours ago by Samurai

[Coco]

It is part of the triturators (in the jaw). Holocephals are also called chimeras (cartilaginous fish like rays and sharks).

 

https://www.google.com/search?client=firefox-b-d&sca_esv=18fa2256dcc18326&sca_upv=1&sxsrf=ADLYWILBgOezdpp6IDjvd3kRUNLXyFsHMw:1727392569769&q=holocéphale&udm=2&fbs=AEQNm0CbCVgAZ5mWEJDg6aoPVcBgTlosgQSuzBMlnAdio07UCId2t1azIRgowYJD0nDbqEIN7XYIyS3uBYzHmWPp2pnW7G_IJrZtNDMziXf_SeaMZv5mQEpVVAa0sN9KIj0kgaUhXfFR1pvCaBMjGis3J2-YASoH3vq235tGT22LuP522AlHeE4&sa=X&ved=2ahUKEwifzYjk3uGIAxUrTaQEHcdQJ-8QtKgLegQIFBAB&biw=1312&bih=659&dpr=1.09

 

Coco