Different ages, same site

[Shellseeker]

I was out hunting yesterday to a miocene_pliocene site that produces mostly small shark teeth with occasional surprises.  In this instance there were three.

1st up... Upper molar Nannippus aztecus (11-5 mya) upper molar.  Certainly Nannippus,  likely aztecus  based on size and location.

 

Next , my unknown,  a dolphin periotic earbone, 29 x 16 mm well worn and found in a miocene site. @Boesse

 

And finally a Bison or Bos lower m3 unerupted enamel cap  .. no roots. I was quite excited seeing the complete enamel in excellent unworn quality. But based on size and lack of wear,  it is probably Bos... Looking for any different opinions

[Shellseeker]

I just was searching for information on previous finds and found this thread !!! I returned to this site Tuesday and found 2 more Dolphin periotics  @Boesse @Harry Pristis AND 2 more lower tridactyl  horse teeth.

I think the smaller horse tooth (1st photos) is likely Nannippus Aztecus based on size and location,  but could definitely use help on the others.

 

A little beat up but may be enough to Identify,

 

and then the two periotics... 1st seems the same as the original one in this post.

 

Thanks for any /all responses.  As indicated above, believe these fossils are likely Miocene

[Boesse]

First periotic is a juvenile beluga (Monodontidae) and the second one is either a partial Pomatodelphis (most likely given location) or possibly a squalodelphinid.

[Shellseeker]

35 minutes ago, Boesse said:

First periotic is a juvenile beluga (Monodontidae) and the second one is either a partial Pomatodelphis (most likely given location) or possibly a squalodelphinid.

Thanks for the IDs.  I am amazed that the Beluga's are there in South Florida's Miocene. I will try to read upon them.  I was wondering if the 2nd one was broken.  It is definitely an odd shape for a periotic. 

[Harry Pristis]

On 3/18/2022 at 6:24 PM, Shellseeker said:

. . . 

And finally a Bison or Bos lower m3 unerupted enamel cap  .. no roots. I was quite excited seeing the complete enamel in excellent unworn quality. But based on size and lack of wear,  it is probably Bos... Looking for any different opinions

 

I think, Jack, that this is a developing deciduous premolar from a bovid.