Jump to content
Allosaurus

Baja shark teeth and ?

Recommended Posts

Allosaurus

I received a handful of shark teeth from an older local gentleman's collection who told me they were from Baja near the Sea of Cortes between Santa Barbara and Lorentz. I assume they are great white teeth, but I'm hoping for a better geological context if possible (age and formation/group ideally, even if just suspected). I've done some research, but haven't turned up much. I saw a reference to the El Cien Fm, but am hoping for some input from others who have far greater knowledge than I do. Along with the teeth came a small chunk of bone that also came from around the same area. Input on what it is or might have come from would also be appreciated.

The largest tooth is 2 and 6/16ths in and the smallest is 2 1/16th in. The bone is 3 3/16ths in long and 1 2/16ths in wide.

2019-07-08-21-15-25.jpg

2019-07-08-21-13-37.jpg

2019-07-08-21-14-00.jpg

2019-07-08-21-14-22.jpg

2019-07-08-21-14-40.jpg

Share this post


Link to post
Share on other sites
Natalie81

Are there serrations on the teeth?

I think Carcharadon hastalis. 

The bone looks older, cretaceous? 

Share this post


Link to post
Share on other sites
caldigger

I can see there are very worn serrations. These do look like GW teeth.

The bone is pretty nondescript, (maybe a section of rib ), not sure you are going to get much further on an ID for that.

Share this post


Link to post
Share on other sites
Allosaurus

All teeth do have serrations, though most are pretty worn. 

Share this post


Link to post
Share on other sites
Praefectus

+1 for Great White 

 

The El Cien formation is Oligocene-Miocene in age. The transition of the broad-form Cosmopolitodus hastalis to the great white Carcharodon carcharias occurred in the late Miocene. The teeth have worn serrations which point to great whites. 

Share this post


Link to post
Share on other sites
Allosaurus

Hmmm, does anyone have a geologic map of Baja which shows specific formations? I've only been able to find maps showing general provinces so far. 

Share this post


Link to post
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now


  • Recently Browsing   0 members

    No registered users viewing this page.

×