Ganodermas can be divided into shiny and not shiny. This and the similar Ganoderma applanatum are in the not-shiny camp, and also like G. applanatum, you can draw on Ganoderma lobatum's fertile surface. In my experience, individual species of polypores are more morphologically various than agarics. I wish more field guides would post more pictures to give a sense of this variety. One site that often does a good job of this is from Messiah University.
This specimen had the wonderful Ganoderma smell, and the new growth was growing directly on the old growth, as you can see in the last picture. Notice also how the two new caps grow one on top of the other. The pores were typically about 4 per millimeter. "Lobatum" means having lobes. You can see the lobed ridges on the older specimens, and the thick lobe-like margin on the new growth. Note the Violet Tooth Polypore growing to the right at the base of the tree. My dog Rambo is very fond of this mushroom and asked if he could be in the picture.