Dolphin Periotic

[Shellseeker]

I am blessed to(still) be finding a few interesting but small fossils.  This 1st one is a very high quality horse ear bone,  and the 2nd is a clump of silicified coral with a little Botryoidal druzy growing inside.  I always enjoy sharing these.

 

And ... the last is easy.  It is a Dolphin earbone (size 33 x 18.5 x 11 mm) ... a periotic. But I want to know which dolphin. and for that I need an experienced eye.  @Boesse I hope that I have provided enough views.

 

It might be a number of different Marine Mammals.  See this recent thread to understand why I ask for assistance on most of these.

 

[siteseer]

I don't know, Jack.  That one is pretty worn.  I'm interested in reading what Bobby says.

 

Jess

[Boesse]

Despite being worn - or, more likely, acid etched - that periotic is pretty clearly a platanistoid, and since it's from Florida, it's likely Pomatodelphis. If older rocks are present, a squalodelphinid might be possible as well - but that's more typical of Pungo/Calvert.

[Shellseeker]

1 hour ago, Boesse said:

Despite being worn - or, more likely, acid etched - that periotic is pretty clearly a platanistoid, and since it's from Florida, it's likely Pomatodelphis. If older rocks are present, a squalodelphinid might be possible as well - but that's more typical of Pungo/Calvert.

Thanks, Bobby..

To my view , it seemed very similar to the Tamiami Formation land find Pomatodelphis, you walked me thru a couple of years back. Before I went thru an looked for differences and similarities, I wanted to hear your assessment.

https://fossilsandotherlivingthings.blogspot.com/2010/05/partners-in-hunt-fossil-collectors-and.html

I got the 20 mya Calvert periodic from one of your blogs... and it looks really similar to Pomatodelphis. My confidence in differentiating the two would not be high. 

 

While I sometimes hunt much older locations, this is the Peace River with the typical mix of plio_pleistocene materials.  I do not even see the older Tiger sharks .. aduncus or contortus here that I sometimes see in other Peace River locations.

 

Thanks for the identification.

 

 

 

 

20 mya periotic from Calvert Cliffs.

[Al Dente]

12 minutes ago, Shellseeker said:

Thanks, Bobby..

To my view , it seemed very similar to the Tamiami Formation land find Pomatodelphis, you walked me thru a couple of years back. Before I went thru an looked for differences and similarities, I wanted to hear your assessment.

https://fossilsandotherlivingthings.blogspot.com/2010/05/partners-in-hunt-fossil-collectors-and.html

I got the 20 mya Calvert periodic from one of your blogs... and it looks really similar to Pomatodelphis. My confidence in differentiating the two would not be high. 

 

While I sometimes hunt much older locations, this is the Peace River with the typical mix of plio_pleistocene materials.  I do not even see the older Tiger sharks .. aduncus or contortus here that I sometimes see in other Peace River locations.

 

Thanks for the identification.

 

 

 

 

20 mya periotic from Calvert Cliffs.

 

Jack-

This is a little confusing. I’m pretty sure Bobby identified this one as a Kogiid sperm whale periotic, but you still are calling it Pomatodelphis? Here’s the link to the ID-http://www.thefossilforum.com/index.php?/topic/115056-marine-mammal/

 

 

[Shellseeker]

43 minutes ago, Al Dente said:

Jack-

This is a little confusing. I’m pretty sure Bobby identified this one as a Kogiid sperm whale periotic, but you still are calling it Pomatodelphis? Here’s the link to the ID-http://www.thefossilforum.com/index.php?/topic/115056-marine-mammal/

You are correct.. In a thread on November 28th, Bobby stated
:

Quote

The tooth posted above is probably a eurhinodelphinid tooth. The two periotics posted above are the same taxon as the large unnamed kogiid sperm whale from the Yorktown Fm. at Lee Creek.

Bobby's comment was on THIS photo... so both of these are in the Kogio taxon..  Both of these came from land find. I had just left the incorrect labels on my personal Database.  MY BAD.

 

As far as this thread,

Bobby just identified this Peace River periotic as Pomatodelphis

and from the Thread you referenced, he identified this periotic also as Pomatodelphis .  I have some side by side comparisons to do.  Thank you for the quick recognition of the error.    Jack

 

 

[Plantguy]

Great finds Jack! 

Regards, Chris