Mosasaur tooth ID wanted

[Brevicollis]

Hello, I saw this already sold tooth and want to know the species it belongs to.

It doesnt seem to match with croc, plesiosaur, or fish. The pictures of it are'nt the clearest, but Im able to spot some slight prismarism only at the base. The rest of the tooth has no prismarism, only enamel patterns.

 

I also saw these two pictures of a Khinjaria acuta tooth, and thought when I compared them, that he might be a candidate. @Praefectus 

 

The Khinjaria acuta tooth :

 

 

 

 

The tooth this topic is about :

 

[Coco]

Hi,

 

The size could be useful !

 

Coco

[Brevicollis]

@Coco, yea, I forgot to include it 

Its 1.4 inches or 3.5 cm.

[North]

Curvature looks bit odd. Like one that Enchodus teeth has.

[Brevicollis]

@North, but Enchodus teeth from that location appear like if they're always white, dont have any prismarism at the base as far as I know, and have an overall different enamel texture than this.

 

I dont think its Enchodus.

[Brevicollis]

@North, here are some pictures of one of my Enchodus teeth, same sice, same location.

Looks completly different, right ? Much more slender, striations, white, only one front carina, and a more strong curviture.

Edited Saturday at 10:20 AM by Brevicollis

[North]

50 minutes ago, Brevicollis said:

@North, but Enchodus teeth from that location appear like if they're always white, dont have any prismarism at the base as far as I know, and have an overall different enamel texture than this.

 

I dont think its Enchodus.

Usually, but those can be brown too.

 

But Im just saying that curvature of the tip is odd on second tooth.

Also it looks that it might have some striations, but picture is bit blurry.

[Brevicollis]

Just now, North said:

Usually, but those can be brown too.

 

But Im just saying that curvature of the tip is odd on second tooth.

Also it looks that it might have some striations, but picture is bit blurry.

Might be true, but I still dont think its Enchodus.

[JorisVV]

@pachy-pleuro-whatnot-odon

[pachy-pleuro-whatnot-odon]

6 hours ago, North said:

Curvature looks bit odd. Like one that Enchodus teeth has.

 

5 hours ago, North said:

Usually, but those can be brown too.

 

But Im just saying that curvature of the tip is odd on second tooth.

Also it looks that it might have some striations, but picture is bit blurry.

  

2 hours ago, JorisVV said:

@pachy-pleuro-whatnot-odon

 

I think this could be a candidate for Khinjaria acuta. At the same time, I agree with @North that the curvature at the base of the tooth is weird, and I hadn't really considered the possibility of Enchodus sp. before. Those would, however, be more laterally compressed, I think... Also, I haven't seen any Enchodus-teeth with facetting at the base of the crown before - at least not come out of Morocco. In addition, the build-up of the tooth, where it's broken, seems more reptile than fish to me.

 

Since I don't think there are any known samples of Khinjaria acuta "in the wild" yet, it's difficult to compare

[Praefectus]

That's a croc tooth. I have more pictures of that tooth somewhere. I bugged the seller about it the week Khinjaria published and went through his whole stock looking for one. I'll see if I can find the pictures with the diagnostic angles. 

[Brevicollis]

@Praefectus, would be interesting to know what croc species tho 

[Jared C]

On 6/29/2024 at 11:27 AM, pachy-pleuro-whatnot-odon said:

Since I don't think there are any known samples of Khinjaria acuta "in the wild" yet, it's difficult to compare

 

Nick longrich ( who described Khinjaria) posted this Khinjaria tooth from the upper couche III on his instagram. He informally establishes this means that the taxon goes right up to the end of the Maastrichtian