Abelisaurid Tooth

Very nice tooth.  Bahariasaurus is only described from Egyptian deposits.  What you have is an indeterminate Abelisaurid from the Kem Kem Group.  The Tegana is also not a valid formation, never had been its the KK Group..

Thank you so it is actually a Abelisaurid tooth?

Yes, what I said.

Note the syntypes of Bahariasaurus ingens lack teeth(this applies to the other specimens as well), we cannot identify any teeth as B.ingens. 

And as pointed out,the only firm register of B.ingens is from the Bahariya formation,not KK.The material from Niger was referred to B.ingens by Lapparent (1960) without explanation,they could belong to multiple species and seem to lack any B.ingens autapomorphies.

The placing of this taxon is quite controversial,so we cannot use phylogenetic bracketing to predict the tooth shape.

The tooth differs from Carcharodontosaurids in the absence of prominent enamel wrinkles,Spinosaurine teeth lack serrations and Noasaurids have pretty different proportions of the crown.

I concur with Troodon that this probably belongs to an Abelisaurid.

@Troodon @MBL13 Thank you both very much for your help and clarification