Plant stem or worm?

[Salvageon]

A friend found this in Central Montana and is wondering if it is a worm. It's from the Fort Union Formation in an area of plant fossils. I think it is a stem or root end. Any ideas? Only an inch long or so and has lots of fuzz or something.

[Darktooth]

Interesting find,but I don't know what it could be.

[caldigger]

Not sure what the main structure is, but the "fuzzy" looks dendritic to me.

[ynot]

Possibly a twig with a leaf bud, and dendritic mineral growth around it.

Tony