Carboniferous lycopod roots

[SteveE]

Central Pennsylvania (USA);   Pottsville Formation, grey shale.... in situ boulder removed and split at home

 

For starters, it does split but it also kinda breaks into hunks and crumbles a bit.  Is that correctly described as "nodular shale"?

 

There are a lot of slender black long things without a great deal of definition, and one piece has these round shapes.   I think I'm looking at Stigmaria rootlets and where the rootlets attach to the main root.  I'll try to add photos of presumed rootlets later.  Would welcome any further enlightment.

 

Thanks!

 

Edited June 25, 2021 by SteveE

[Fossildude19]

I think you are spot on here.