Shark tooth - Lower/Middle Oxford clay boundary

[jacob]

Pre-apologies for the picture, it is rather small and doesn't pick up well on my camera... Nonetheless, can anyone help identify this tooth? I have the name on the tip of my tongue, but my books are not with me to help identify it... 

 

[Tidgy's Dad]

Would it be Akaimia ? 

Great find, whatever it is! 

[Darktooth]

Is this a species of cowshark? It's a neat looking tooth. What time period is it from?

[FossilsAnonymous]

Looks like some sort of cow shark to me

[sixgill pete]

Oxford Clay is Jurassic if I am correct. reminds me of Echinorhinus (Bramble Shark) but wrong time period. Very interesting tooth.

 

 

Edit: There are known Hexanchidae from the Jurassic my mistake. So this does make this a possibility. @Darktooth

[Al Dente]

I think Notidanus can be found there.

[Darktooth]

28 minutes ago, sixgill pete said:

Oxford Clay is Jurassic if I am correct. No Cow Sharks there. reminds me of Echinorhinus (Bramble Shark) but again wrong time period. Very interesting tooth.

 

@Darktooth @FossilsAnonymous

Thanks!

[Anomotodon]

It is indeed Notidanus cf. muensteri upper lateral which are indeed known from Oxford clay and are cowsharks (Hexanchiformes).

 

[Fossildude19]

Neat looking tooth.  

I've not heard of this one before. 
Thanks for posting it. 

Cropped and enlarged:

 

[ynot]

Nice find @jacob

[jacob]

Thank you for the help, I appreciate it! I have more micro-Paleontological residue to sift today so there is the potential for more finds.. 

[Ludwigia]

Very nice find!

[Kosmoceras]

Stunning and rare tooth! Well done.