1. Physical stratigraphy and trilobite biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the southern Great basin Author/Creator: Palmer, Allison R., author Publication/Creation: Washington : United States Department of the Interior, Geological Survey, 1979 Resource Type: Book Access & Availability: Loading
2. Physical stratigraphy and trilobite biostratigraphy of the Carrara Formation (Lower and Middle Cambrian) in the southern Great basin Author/Creator: Palmer, Allison R. Publication/Creation: Washington : U.S. Govt. Print. Off, 1979 Resource Type: Book Is Part Of: U.S. Geological Survey professional paper, no. 1045-1047. Access & Availability: Loading
3. The Precambrian-Cambrian boundary Publication/Creation: Oxford : Clarendon Press, 1989. New York : Oxford University Press, 1989 Resource Type: Book Access & Availability: Loading