Lecanora thysanophora does not exist in western US. this is probibly Lecanora muralis (Protoparmeliopsis muralis). I have seen it is this strange looking form before.
adamm-bio10b
2018-09-00
2018/09/24 12:06 PM HST
United States of America, California, Big Dalton Canyon, Glendora, CA 91741, USA