Trace Fossils From the Lower-Middle Cambrian Carrara Foramtion

Trace Fossils Figured In United States Geological Survey Professional Paper 1047, Physical Stratigraphy and Trilobite Biostratigraphy of the Carrara Formation (Lower And Middle Cambrian) in the Southern Great Basin by Allison R. Palmer and Robert B. Halley, 1979

"Casts of Cruziana-like arthropod feeding or locomotion trails preserved on the underside of a siltstone block." Figure 9A. From the Lower Cambrian Pyramid Shale Member, Titantothere Canyon section, Grapevine Mountains, Death Valley National Park.

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