Early Permian footprint fauna from the Sangre de Cristo Formation of northeastern New Mexico
— Adrian P. Hunt, Spencer G. Lucas, and Phillip Huber

We describe an Early Permian ichnofauna from the upper part of the Sangre de Cristo Formation of San Miguel County, New Mexico. The ichnofauna includes the amphibian tracks Anthichnium sp., Limnopus vagus, cf. Nanopus sp. and cf. Stenichnus sp. Reptile tracks are Dromopus lacertoides, Dromopus sp., Anomalopus supaiensis, Gilmoreichnus sp. and Dimetropus sp. Invertebrate ichnotaxa include Aenigmichnus multiformis and Paleohelcura tridactyla, and the conifer Walchia piniformis is common. This locality is of Wolfcampian (Early Permian) age and represents an area of intermittent moisture (?pond margin) in a region of continual, unconfined flood-events. This locality contains the most diverse Early Permian ichnofauna reported from New Mexico and is one of the most diverse ichnofaunas of its age known from the Southwest.