Nat006 Posted July 4, 2022 Share Posted July 4, 2022 This was found on the beach in Romania (Black Sea). It is about 6cm. I have no idea what it is. At first look it seems like a fossilized coral. But as I did some research, this doesn't really look like other fossilized corals I've seen. Another option could be borings made by creatures, but a lot of them are openings rather than holes (apart from a big deep hole which is visible in pictures, is that a boring?). Another option I found is something volcanic, but why does it have so many holes? Any help is greatly appreciated, thank you! Link to comment Share on other sites More sharing options...
TheInvertebrateGuy Posted July 4, 2022 Share Posted July 4, 2022 (edited) Either boring activity from a sponge or an igneous rock. Edited July 4, 2022 by TheInvertebrateGuy 1 Link to comment Share on other sites More sharing options...
supertramp Posted July 4, 2022 Share Posted July 4, 2022 Boring activity of endolithic sponge I think 1 3 Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now