Identificaciones de pinonbistro

This is a small hoof-bracket shaped conk found at the base of a crucifixion thorn (Canotia holacantha). Scratching the pore surface revealed a mustard yellow/ochre color. It's clearly been there for multiple years, but there was no visible spore print underneath it.

Growing from dead moss/soil in a cranny/tiny cave beneath a creek created by a rock overhang, directly beneath a large compromised oak. In an old burn area around 8,500-9,000ft.
Decorated with fine white fibrils all over. 1cm tall with a cap 7mm in diameter.