Syringodendron?

[historianmichael]

These two pieces were collected several years ago in Centralia, PA (Llewellyn Formation; Late Pennsylvanian). For a long time I had no clue what they could be. After recently coming across a publication titled "Fossil Plants From the Anthracite Coal Fields of Eastern Pennsylvania," I think I have a better idea now. I was hoping that someone with more knowledge in paleobotany could confirm my suspicions. I have seen several version of Syringodendron online, but the image in the publication seemed to match these pieces. What do you think? Any help is greatly appreciated. Thanks!

 

#1- There are a series of "welts" on both sides of the piece that seem to run in pair on a bit of a diagonal line, as seen in the second and third photos

 

#2- This piece similarly has a pair of parallel "welts" on the upper lefthand side, as seen in the second photo. The third photo is what is on the review. It doesn't appear to be well-preserved, so I have no idea what it could be - perhaps more Syringodendron

 

[Rockwood]

Syringodendron is exposed Sigillaria cortex ?

Lycopsid cortex is as far as I would go.