PIXIE-CUP LICHEN?

We went out this morning in the cold looking for a blip and Happy Jacqui did one of an old pill box and I found this lichen growing on a tumbled down dry stone wall. It's not a very good picture but the wind was blipping freezing!
I had a look on the internet and i think it is a
PIxie-Cup Lichen. Anyway I like the name.