2 Cretaceous Teeth For Id

[Ancient Bones]

I have these two teeth from the SD matrix that need IDs please.

Edited February 23, 2015 by Ancient Bones

[old bones]

We would love to get some feed back on these. Thanks

[BSE]

Hi,

Could you post pics of the other sides of tooth one?

Maybe it is a Ptychodus, but different views will tell...

The second tooth is too badly worn to identify, even the root is missing. Reminds me of a Cretolamna tip, but I'm not sure it is one.

Regards,

Bernd

[mikeymig]

Google image - Brachychampsa montana and Leidyosuchus teeth.

Mikey

Edited February 25, 2015 by mikeymig

[Ancient Bones]

Thanks for looking Bernd.... The back was just matrix.

[Ancient Bones]

Leidyosuchus it is Mikey. Thank you. My first croc tooth!

[GeschWhat]

I'm pretty much a novice when it comes to teeth, but I always thought croc teeth were more rounded and champsosaur teeth had the flat back like those in the picture...did I hear wrong?

[jpc]

I don't think either is croc or champsosaur. The broken inside surface of the second tooth is more shark-like in this writer's opinion. And the first looks I like a broken and worn Ptychodus... I see typical Ptychodus texture near the base ( bottom of photo). I like BSE's IDs.

[BSE]

Thanx jpc for supporting my ID!

I think GeschWhat is right, croc's teeth are round or ellipsoid in diameter. And generally bigger, I guess.

This is definitely a shark tooth, but what kind exactly it is hard to say.