-
Jennifer Bauer posted an image in the group
Paleo Pics from the myFOSSIL app 4 years, 9 months ago 4 years, 9 months ago4 years, 9 months agoSmall plant 🌱 fossil given to me by my first paleo-mentor, Dr. Roy Plotnick. I can’t remember if he gave me any associated data. Possibly from Mazon Creek, so likely Pennsylvanian in age. Paging @mackenzie-smith #fossil
Either Althopteris or Pecopteris. The entire pinnae attaching to the rachis tell me it’s one of those genera. Veination distinguishes them but I forget the difference.
Thanks @mackenzie-smith! I can look them up.
Definitely looks like a Mazon Creek concretion. Middle Pennsylvanian – Des Moinesian Stage if I recall correctly.