Castle Hayne ID Help

[historianmichael]

I am hoping to get help identifying some invertebrates that I found in the Eocene Castle Hayne Limestone. Most are bivalve internal molds. I have seen the first colloquially called a sponge, but I am not sure that identification is correct. The only reference with plates I could find online for the Castle Hayne was Kellum's Professional Paper 143 from 1926, but it is dated and most descriptions only included a genus. If you know of another reference that is better, please let me know. Any help is greatly appreciated. Thank you so much!

 

#1

 

#2

 

#3

 

 

#4

 

 

#5

 

 

#6

 

 

#7

 

[Al Dente]

#1 is a colonial coral. Not sure the species. It is a mold of the coral; the coral has dissolved away. Here is a similar one from the Castle Hayne. The zoomed in photo shows the septa.

 

 

[historianmichael]

47 minutes ago, Al Dente said:

#1 is a colonial coral. Not sure the species. It is a mold of the coral; the coral has dissolved away.

That is what I thought. It reminded me of like an Astrhelia coral. That is why I thought the identification of sponge had to be wrong.

Edited September 16, 2021 by historianmichael