Miocene Bivalve id's

[grg1109]

These fossils were purchased by me from a friend who had received them 30yrs ago. In the box they were in was a paper that read "Miocene, Calvert Cliffs, MD.

Though some have argued that they are Florida fossils...I found id's for all but a couple from: "Vokes, H.E., 1957, Miocene fossils of Maryland: Maryland Geological Survey Bulletin 20, 85 p".

I was wondering if anyone could id the two left...the single fossil photos?

Thanks

Greg

Edited October 15, 2021 by grg1109

[Tidgy's Dad]

Some very nice specimens in that first photo. 

But I don't think the two mystery items are brachiopods. Some sort of clam, I think. 

[Paleorunner]

Yes, I also lean towards bivalve mollusks.

 

The second reminds me of a little tridacna.

Edited October 14, 2021 by Paleorunner

[grg1109]

Thanks Tidgy's Dad.  I really like them. 

Oh, really...bivalves.  Must not be an index fossil as the only book I have including Miocene is "Index Fossils of North America" and I've run out of options that I can see on the internet.

Thanks

Greg

Edited October 14, 2021 by grg1109

[MikeR]

Not Maryland Miocene but Florida Pliocene.

[Coco]

Hi,

 

Nice shells ! Thank you for using the centimeter paper

 

Coco

 

 

[hemipristis]

6 hours ago, MikeR said:

Not Maryland Miocene but Florida Pliocene.

I concur. Several of the gastropods I haven't seen in Calvert sediments, but are common in the Florida shell pits.  The preservation also hints at Florida

[grg1109]

8 hours ago, Coco said:

Nice shells ! Thank you for using the centimeter paper

Thanks for the link!!  I appreciate it!

 

Greg

Edited October 15, 2021 by grg1109