Hexagonaria quadrigemina?

[andoran]

I just posted on two other corals. I have several that I need help with identifying. Please forgive me for the spam. I thought it would be easier to post one or two rocks per topic rather than put them all together.

I purchased this one from online from a pawn shop in Florida. They claimed it was a Hexagonaria quadrigemina. Does anyone have any idea whether this is true?

[Ludwigia]

That appears to be correct to me, but maybe @TqB knows for sure. Do you have any information on the provenance?

[andoran]

No, I'm sorry. No information at all except that it was labeled Hexagonaria quadrigemina.

[FossilDAWG]

I think the ID you were given is incorrect.  Hexagonaria is a Devonian colonial rugosan coral, and your specimen is a scleractinian and much more recent.  The fourth photo suggests that the coral is encrusting something that was kept open, so possibly a hermit crab domicile such as a snail.  You might check out Septastrea marylandica as a possibility.  See this link for an example of a similar specimen (photo copied below).

 

Don

 

 

 

[andoran]

Thank you. I thought the fact that it was open was weird. It’s not something I had seen in any other Hexagonaria.

[TqB]

8 hours ago, FossilDAWG said:

I think the ID you were given is incorrect.  Hexagonaria is a Devonian colonial rugosan coral, and your specimen is a scleractinian and much more recent.  The fourth photo suggests that the coral is encrusting something that was kept open, so possibly a hermit crab domicile such as a snail.  You might check out Septastrea marylandica as a possibility.  See this link for an example of a similar specimen (photo copied below).

 

 

Don

 

 

 

 

I agree.