Your first photo suggests the remains of something fungal. Whatever it was, I think it’s past its best. The fungi in the other two photos are also none too fresh, but are certainly a Stereum species and almost as certainly Stereum hirsutum. Very common on dead broadleaf branches, logs, and stumps with an upper surface that is zoned and hairy/tomentose. Stereum subtomentosum is much less common, rather larger and fan/oyster shaped, with an upper surface that is sub-tomentose/only slightly hairy. Hope that’s some help…