wonder how old this is? Tinder fungus?

[Harnser]

found this today. I think this is the horses hoof fungus, first photo has 50p placed on top for scale, goes right back into the crack in the birch stump, there is grass growing on top around centre position. new growth on underside, what do you think?

https://scontent-b-lhr.xx.fbcdn.net...62_1606551779570047_7331152248181428919_n.jpg
https://fbcdn-sphotos-c-a.akamaihd....78_1606551502903408_2220986225858445331_n.jpg