Post oak creek teeth! Am thinking cretodus, cretolamna, and cretoxyrhina respectively.

[Jared C]

Hey all,

I'm over the moon to say that my long pursuit of shark teeth was temporarily satiated a few days ago, with a trip to post oak creek that my non-fossil hunter girlfriend surprised me with (...i guess i must talk about it a lot, lol) so that we could take our minds off finals.

 

Unfortunately, we were only able to hunt for an hour and a half, max - the area was supposedly set to be walloped by hail soon after we arrived. This was more than enough time to find probably around 30 teeth though, and a few really stood out. Here are some teeth that I can make an educated guess on, but to be sure, I'll ask you guys

 

Tooth 1:  My thought is on some Cretodus species, simply due to size - I can't tell, but it seems it's not as wrinkly at the base as I heard it needs to be to be able to easily tell it apart from Cretolamna. (also, the best tooth I've ever found, what a heart breaker missing the tip!)

 

 

 

 

Tooth number 2 - my thought is Cretoxyrhina mantelli - I'm most comfortable trying to ID this one, but I'd rather be sure.

 

 

Tooth number 3: My thoughts are Cretolamna, (maybe appendiculata?). But, for all I know, this may be some Cretodus species as well.

 

Now for reference to size, I'm a little lost because the only other place I've ever managed to find teeth before is the waco pit, and there are no large teeth there, supposedly because it was a site of lagoon dwarfism. Because of this I don't really have perspective - so, are these teeth of average size for their species?Large? Small? Thanks for any input.

[facehugger]

Nice finds - especially for POC. I would think Cretodus for the first tooth as well.

[Darktooth]

I think #1 & #2 are both Cretodus. The 2nd definitely has the correct blade shape, but missing cusps that likely were broken off.

#3 looks more like Cretolamna to me.

[ThePhysicist]

Very nice teeth, especially the first - love the color. All three are the coveted Cretodus. #1 has a shelf-like lingual root protuberance, and pointed cusplets. #2 is worn, but has subtle wrinkling at the foot of the crown, and likewise the right root shape. #3 has obvious striations on the lingual face of the crown, the pointed cusplet (though a bit broader), and the right root.

 

As for size, you didn't provide a scale, but they seem typical. They can get much bigger. 

Edited May 6, 2021 by ThePhysicist

[Jared C]

Awesome, thank you for the complete answer!