Homepage › Forums › What Is It? › Pennsylvanian ?seed / ?trace, in sandstone, likely fluvial, likely Illinois › Reply To: Pennsylvanian ?seed / ?trace, in sandstone, likely fluvial, likely Illinois
October 12, 2016 at 7:56 pm
#13680
Keymaster
@asa-kaplan, Hi Asa, upon first look it appears like a fossil Carya, but that would not match with Pennsylvanian age, so I suggest that you might have a pseudofossil here.
best
Ronny