Stumbled across these black, finger-like things poking out of the mulch in my backyard. They are hard and creepy. Does anyone know what this is?

3. How To Positively Identify Dead Man’s Fingers in Your Yard
To positively identify Dead Man’s Fingers, look for its distinct characteristics: elongated, finger-like structures that are black or dark brown when mature. Initially, they may appear pale or whitish before darkening. The surface is typically smooth, and the interior is white when cut open.
These fungi are typically found growing from buried or decaying wood, often at the base of trees, stumps, or within mulch. If you suspect you have found Dead Man’s Fingers, consider taking a sample to a local extension office or a mycologist for confirmation.
4. What Causes This Fungus To Appear in Mulch and Garden Beds