• Profile photo of Andrew Grover

    Andrew Grover wrote a tagged post :

    Fossilized in the Digital Domain

    [caption id="attachment_156" align="aligncenter" width="443"] Cairichnium leonardii dinosaur track (Dakota Sandstone; Lower Cretaceous; eastern side of Dinosaur Ridge, west of Denver, north-central Colorado, USA) James St. John via Compfight cc[/capt