Full reference: M. W. Caldwell, R. L. Nydam, A. Palci and S. Apesteguía. 2015. The oldest known snakes from the Middle Jurassic-Lower Cretaceous provide insights on snake evolution. Nature Communications 6(5996):1-11
Sister taxa: none
Type specimen: MG-LNEG 28091, a partial skull (left maxilla). Its type locality is Guimarota, which is in a Kimmeridgian lagoonal coal in the Alcobaça Formation of Portugal.
Distribution: found only at Guimarota
Specimen images are retrieved through the ePANDDA API.
Click image to enlarge. Click to access iDigBio record.