I thought it had different septa/maze walls than my Platy below, but I guess it's more similar than I first thought. Also, I have only seen domed platygyras and the green one is irregularly shaped.
Note: second pic above is included to show closeup of coral walls.
Other Platygyra, in feeding mode:
@Kensington Reefer You think the first green pic is Oulophyllia or the brown and green one with sweepers?
What's that about counting scutes? That sounds like a good job for some students I have in mind.