The Abo Pass tracksite: a lower permian tetrapod footprint assemblage from central New Mexico
— Spencer G. Lucas, Justin A. Spielmann, and Allan J. Lerner

The Abo Pass tracksite is in the Cañon de Espinoso Member of the Abo Formation at Abo Pass in Valencia County, New Mexico. The locality is dominated by footprints of Amphisauropus kablikae, with far fewer numbers of Dromopus lacertoides, Batrachichnus salamandroides and Ichniotherium cottae. This tracksite exemplifies the concept of a Lower Permian Amphisauropus sub-ichnocoenosis of red-bed tetrapod tracksites from inland fluvial settings near uplifts. However, the abundance of Amphisauropus at the site could be anomalous, and this possibility highlights the need for additional data with which to fully evaluate proposed ichnofacies models of Early Permian red-bed tetrapod footprints.