Could also be this.
Gloeophyllum sepiarium (Fries) Karsten
COMMON NAME: Yellow-red Gill Polypore.
CAP: 14" (2.510 cm) wide, semicircular to kidney-shaped, flat or slightly convex, stalkless, fibrous-tough; surface covered with short stiff hairs, becoming matted and felty or nearly smooth in age, with distinct concentric zones and furrows, bright yellowish red to reddish brown; margin whitish to orange-yellow or brownish yellow, uneven, with tufts of tiny hairs.
FLESH: up to ¼" (6 mm) thick, fibrous-tough, yellow-brown to rusty brown, black in KOH.
PORE SURFACE: golden brown to rusty brown, gill-like to labyrinthine (often both), and sometimes with elongated pores; pores 12 per mm.
SPORE PRINT: white.
MICROSCOPIC FEATURES: spores 913 x 35 µm, cylindric, smooth, hyaline.
FRUITING: solitary, in groups, or rosette-like clusters on decaying wood, usually conifer; year-round; common.
EDIBILITY: Inedible.
COMMENTS: Lenzites betulina (inedible) has white flesh and usually grows on decaying hardwood. Gloeophyllum trabeum (inedible) has crowded gills and narrow pores, up to 4 per mm along the margin.