Starship Enterprise fungus

After discovering this website, I think fungi could be my next new thing. I've run out of time to work out which one it is so, given its size, for now, it's dinner plate Starship Enterprise fungus.

Updated: Thank you for your lovely comments... Definitely Starship Enterprise

And again: thank you Inverculain who has identified it for me as Polyporus Squamosus. Still rather a good name.