Invertebrates of the Chinle Formation, in Breed, C.S., and Breed, W.J., eds., Investigations in the Triassic Chinle Formation

Breed, W.J., 1972, Invertebrates of the Chinle Formation, in Breed, C.S., and Breed, W.J., eds., Investigations in the Triassic Chinle Formation: Flagstaff, Museum of Northern Arizona Bulletin no. 47, p. 19-22.