Makos

[Shellseeker]

From Wednesday.  Are these all C. hastalis ? It the last one a symphyseal ?

[Al Dente]

I would call the first and third ones C. hastalis, possibly the later broad form. The third tooth is a posterior tooth. Does the second tooth have serrations? If so, it is a lower C. carcharias , if no serrations it is a lower C. hastalis.

[Shellseeker]

1 hour ago, Al Dente said:

I would call the first and third ones C. hastalis, possibly the later broad form. The third tooth is a posterior tooth. Does the second tooth have serrations? If so, it is a lower C. carcharias , if no serrations it is a lower C. hastalis.

Thanks for your response/expertise.

I never noticed the serrations.

Tooth# 2

 

Tooth #1... Transitional ?

 

A while back I found this similar tooth at the same location. Can you tell tooth position?

 

On the posterior tooth, do you have a sense of what sized Mako would have a posterior tooth this sized. I was initially amazed at the tiny size of posterior teeth on Megs, GWs. 

 

Jack

[Meganeura]

1 hour ago, Shellseeker said:

Thanks for your response/expertise.

I never noticed the serrations.

Tooth# 2

 

Tooth #1... Transitional ?

 

A while back I found this similar tooth at the same location. Can you tell tooth position?

 

On the posterior tooth, do you have a sense of what sized Mako would have a posterior tooth this sized. I was initially amazed at the tiny size of posterior teeth on Megs, GWs. 

 

Jack

I found my own tiny posterior C. Hastalis last time I was out - they’re pretty interesting for how small they get!

 

[Al Dente]

3 hours ago, Shellseeker said:

I never noticed the serrations.

They might be small chips or scratches. You might need magnification to tell the difference between small serrations and chips.

 

3 hours ago, Shellseeker said:

On the posterior tooth, do you have a sense of what sized Mako would have a posterior tooth this sized.

Hard to tell. The size of posterior teeth in a single shark will vary quite a bit, getting smaller further back in the jaw.