Another Echinoid

[Jazfossilator]

 (Myrtle Beach, South Carolina) Was lucky enough to find another one of these lovely creatures with a bit more of the top intact, maybe this can help with a positive ID. Also wondering if I should attempt to remove some of the stone attached to the outer side or if that could potentially ruin it more?

[hemipristis]

Probably Oligocene.

 

If you choose to try to remove some of the limestone, I suggest an air abrader with a delicate touch.

 

I'll see what references I have

[Jazfossilator]

Thank you!!

4 hours ago, hemipristis said:

Probably Oligocene.

 

If you choose to try to remove some of the limestone, I suggest an air abrader with a delicate touch.

 

I'll see what references I have

 

[Al Dente]

The bottom of this echinoid looks like Hardouinia. Most likely from the Cretaceous Peedee Formation.

[Plax]

would like to see the Periproct cleaned. Can we get a measurement on this? Am agreeing with Al Dente.

  Hollow echinoids are very difficult to clean without popping them.

[Jazfossilator]

3 hours ago, Plax said:

would like to see the Periproct cleaned. Can we get a measurement on this? Am agreeing with Al Dente.

  Hollow echinoids are very difficult to clean without popping them.

I will post a measurement later this evening, and I will also try cleaning the Periproct

[Jazfossilator]

[hemipristis]

18 hours ago, Al Dente said:

The bottom of this echinoid looks like Hardouinia. Most likely from the Cretaceous Peedee Formation.

 

I will definitely defer to the echinoid experts here. I was looking at the matrix and the overall shape, and it reminded me of the Oligocene echinoids I'd find on Topsail Island, NC with similar matrix attached.