The Devonian flora of Arizona, in Ash, S.R., ed., Guidebook to Devonian, Permian and Triassic plant localities, east-central Arizona

Canright, J.E., 1974, The Devonian flora of Arizona, in Ash, S.R., ed., Guidebook to Devonian, Permian and Triassic plant localities, east-central Arizona: Botanical Society of America, Paleobotanical Section, p. 63-69.