Matching dinosaur footprints found on opposite sides of the Atlantic Ocean

[eppur_se_muova]

4. Hmmm ... "matching' is being used *very* loosely here. I don't see any real news to this at all.

Dinosaurs cannot be identified from their tracks, except very broadly. Virtually all large carnivorous dinosaurs would leave similar tracks. Tentative ID of tracks is based on knowing what dinosaurs lived in or near that area at about that time, based on skeletal remains. "Ichnotaxa" are assigned to distinguishably different types of tracks, but may very well represent different species (or genera) at different times and locations, and there is no way of knowing if different ichnotaxa are actually the same species/genus in different stages of growth, or a result of sexual dimorphism. In short, don't read a whole lot into similarities in appearance, even close ones.

We know these two land masses were conjoined at the time -- that's how we know there *might* be a relationship between the creatures that made these tracks. It's hard to see that their similarity offers any new info, only room for supposition.