Trilobites Figured From 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

Trilobites from the Lower-Middle Cambrian Carrara Formation, Death Valley National Park. All specimens are from Plate 14, and greatly magnified. Middle Cambrian Albertella zone. Figures 13 and 16 are Volocephalina contracta; Figure 13 is the top view view of holotype cranidium, Pyramid Peak section, Funeral Mountains; Figure 16 is a cranidium from the Echo Canyon section, Funeral Mountains.