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Couldn’t be wood if it’s cambrian-ordovician, it looks just like scale tree bark so it’s Carboniferous

It’s not a sponge but similar. The name escapes me but I have one uploaded in my specimens, but I’m mobile and didn’t add it to my gallery so I can’t find the name :/ but if you can look at the specimens I uploaded it’s there.

I was working on it with @mackenzie-smith if they remember what it was.

Thank you both very much. According to macrostrat.org, the land is in the middle of multiple formation periods that includes Mississippian-Pennsylvanian… which is both fascinating and difficult for a new learner such as myself 👍

Missispian and Pennsylvanian are both in the Carboniferous which supports my idea. Nice find!

Agreed, scale tree.

@lighting-lou, @a-trilobite and @daniel-park are correct. If it looks like tire treads, it’s Sigillaria. If you see diamonds, it’s Lepidodendron. If you just see dots it’s Stigmaria. Stigmaria is a root genus for roots belonging to either Lepidodendron (a stem genus) or Sigillaria (another stem genus). Because plants have distinct organs that often fossilize separately, we often give them separate names because we don’t always know what they looked like if they are extinct. Likewise the leaves and reproductive organs of these plants have different names.

@mackenzie-smith and others – thank you very much for the feedback; your responses send me on very interesting research/learnings 👍