Pliocene Yorktown Formation Bivalve

[sixgill pete]

I need some help. This bivalve came from a river here in eastern North Carolina. Pliocene Yorktown Formation, zone 2 Rushmere member. I believe it is in the Family Pteriidae (pearl oysters) Genus Crenatula. However I cannot find anything in any literature I have or can come up with.  Complete specimens are extremely rare at this site, though pieces are not uncommon.

 

Any thoughts?  @MikeR @SailingAlongToo 

 

Complete specimen top ...   bottom .. 

 

another one I found complete, but broke after it got home. So I opened it to picture the hinge details .... 

 

top ...   bottom ... 

[Al Dente]

I see two muscle scars, I think oysters have one. Might be Pandora or Clidiophora.

[sixgill pete]

9 minutes ago, Al Dente said:

I see two muscle scars, I think oysters have one. Might be Pandora or Clidiophora.

Funny you posted this Eric. I just finished taking a second look through 

PLIOCENE MOLLUSCS FROM THE YORKTOWN
AND CHOWAN RIVER FORMATIONS IN VIRGINIA
Lyle D. Campbell

 

and was about to post that I was now thinking it could possibly be Pandora maybe tuomeyi

[SailingAlongToo]

14 minutes ago, sixgill pete said:

Funny you posted this Eric. I just finished taking a second look through 

PLIOCENE MOLLUSCS FROM THE YORKTOWN
AND CHOWAN RIVER FORMATIONS IN VIRGINIA
Lyle D. Campbell

 

and was about to post that I was now thinking it could possibly be Pandora maybe tuomeyi

 

Don,

I was getting ready to email you that exact publication. Let me know if you don't get an ID and I will check Dr. Ward's Molluscan Biostratigraphy publication.

[sixgill pete]

8 minutes ago, SailingAlongToo said:

 

Don,

I was getting ready to email you that exact publication. Let me know if you don't get an ID and I will check Dr. Ward's Molluscan Biostratigraphy publication.

Thanks Jack. I looked through Ward and Blackwelder, 1980. Did not see anything in there. Don't think I have the one you are referring to though.

[SailingAlongToo]

32 minutes ago, sixgill pete said:

Thanks Jack. I looked through Ward and Blackwelder, 1980. Did not see anything in there. Don't think I have the one you are referring to though.

 

Not sure if any of these will help......

 

https://ngmdb.usgs.gov/Geolex/UnitRefs/YorktownRefs_4487.html

 

https://gsa.confex.com/gsa/2011SE/finalprogram/abstract_185497.htm

 

https://search.library.wisc.edu/catalog/999730974202121

 

https://books.google.com/books?id=H1who_Eo7BYC&pg=PA176&lpg=PA176&dq=molluscan+biostratigraphy,+yorktown+formation&source=bl&ots=x6TJeV3H-d&sig=UWyU53w8ZeUUT14V1L-FB1LJVnM&hl=en&sa=X&ved=2ahUKEwj7-rjC8LPeAhWFl-AKHUXrAXU4FBDoATABegQIAhAB#v=onepage&q=molluscan biostratigraphy%2C yorktown formation&f=false

 

https://ngmdb.usgs.gov/Prodesc/proddesc_93622.htm

 

Cheers!

[MikeR]

Campbell 1993 is the reference to use.  Pandora crassidens Conrad 1838.  Number 204 in Campbell.

[sixgill pete]

Thanks Mike.

[SailingAlongToo]

5 hours ago, MikeR said:

Campbell 1993 is the reference to use.  Pandora crassidens Conrad 1838.  Number 204 in Campbell.

I miss hunting with MikeR!

Hi Mike!

[MikeR]

Hi Jack

 

I might be in your part of the world by year end.  I have to do some work at the Richmond VA.