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 16, and greatly magnified. Middle Cambrian Glossopleura zone. Figures 6-8 and 16-19 are specimens of Glossopleura walcotti; Figures 6-8 came from the Echo Canyon section, Funeral Mountains, while Figures 16-19 are from the Titantothere Canyon section, Grapevine Mountains; Figure 6 is a cranidium; Figure 7 is a free cheek; Figure 8 is a small cranidium. Figure 16, free cheek; Figure 17, a cranidium; Figure 18, a pygidium; Figure 19, a pygidium.