Coral Id, Southeast Australia - Rugose Coral?

[RyBar]

Hi all

I am after some ID help. A colleague found the specimen on holidays. I'm fairly certain it is a rugose coral, but I'm not the most knowledgeable, so was hoping for some confirmation.

The specimen was found on a walking trail in Jervis Bay (Southeast Australia), approximately 100m-200m inland. No matrix, but other info I have found on the fossils in the area suggest it is probably around 250Ma.

Thanks

[Scylla]

Really looks like a rugose coral to me.

[Chris Herold]

Definitly Rugose coral.