Microfossils from the York River, VA

[MiguelM]

Hello all! 

 

Just finished going through a small batch of matrix from the York River and found a some fossils that I need help IDing.

 

1. These ones strike me as some sort of polychaete jaws, but not sure.

 

2. Some denticles or teeth but they seem a lot different than the skate (Rostroraja sp.) that I've been finding (see 2.1). These do not have the cusp or base morphology that I've been observing and are quite smaller.

 

2.1 Rostroraja teeth

 

Thanks so much!

 

Miguel M

[Al Dente]

This one might be Mustelus.

 

 

[jpc]

That first one is cool.  

[Notidanodon]

those are tinnnnyyyy! great finds  

[Fin Lover]

Very nice pictures!

[Al Dente]

The polychaete jaws might be from the genus Nereis. I’ve found similar ones in modern sediment from the Albemarle Sound in NC. Photo from this site- https://pubs.acs.org/doi/10.1021/bm800200a

 

 

[MiguelM]

8 hours ago, Al Dente said:

This one might be Mustelus.

 

 

Thanks so much! Seems like these sharks do have tiny tiny teeth. I just found this plot of TL and tooth size for Mustelus canis in Moss 1972.

[MiguelM]

8 hours ago, jpc said:

That first one is cool.  

 

5 hours ago, Al Dente said:

The polychaete jaws might be from the genus Nereis. I’ve found similar ones in modern sediment from the Albemarle Sound in NC. Photo from this site- https://pubs.acs.org/doi/10.1021/bm800200a

 

 

 

Thanks! They do seem very interesting. I am wondering, though, if these are fossils or modern, as we do have a ton of nereids living among the oyster reefs in the York River.

[MiguelM]

7 hours ago, Notidanodon said:

those are tinnnnyyyy! great finds  

 

6 hours ago, Fin Lover said:

Very nice pictures!

Thanks so much! I'm grad you enjoy them