Recently and legally collected in private property along the Connecticut River Valley. This is the fossil impressions of a Theropod (raptor) that existed some 200 Million Years Ago. The species that made these tracks is relatively unknown to science, though it he track name is known as the Grallator. Grallator tracks are believed to have been made by Podokasaurus holyokensis
These are both the Negative and Postige impressions created by a single individual. While not an uncommon occurrence, it is quite rare to get both sides fully in tact! This is created when new Sediments cover the original impressions and harden within them. On occasion when you split this Jurassic shale, you will get both the original negative impressions as well as these Raised casts. These tracks have been lightly polished to help pop them out. The polish May be scrubbed off with a little elbow grease so the fossil can revert to its original state.