Then, Stanford et al. (2004) published on dinosaur tracks from the Patuxent Formation of Maryland and Virginia, which they named Hypsiloichnus marylandicus and attributed to an animal akin to Zephyrosaurus based on the proportions of the hands and feet.
Patuxent River | formation | Command (military formation) | Elliot Formation | Patuxent | Lance Formation | Crato Formation | Chinle Formation | Two Medicine Formation | Tamayama Formation | Patuxent Wildlife Research Center | Naval Air Station Patuxent River | Missing Man Formation (band) | Missing Man Formation | Marcellus Formation | Kirkwood Formation | Gettysburg Formation | Clarens Formation | Whitby Mudstone Formation | Tunbridge Wells Sand Formation | Santana Formation | Phalanx formation | phalanx formation | Patuxent, Maryland | Mahantango Formation | Leduc Formation | Identity formation | Hanson Formation | Formation (stratigraphy) | formation (stratigraphy) |