Weald on Bed wrote:
I'd say it looks like an eroded specimen of Ventriculites - Cretaceous sponges similar in form to the modern 'glass sponge'.
For comparison, here's a slightly fresher specimen I found at Overstrand a couple of years ago:
It's possible that the structure of the ostia might be clearer if you removed some of the matrix, though you can never tell with chalk.
That’s a great specimen Stuart. And could possibly be the answer to what I have found.
I will remove some more of the matrix, clean it up and post some more photos once it’s done.
Thanks for your help Stuart. Have a great day