| "Cabbage" stromatoporoids (a variety of sponge) in cross-section, revealing their distinctive concentrically laminated structure, from the middle of the Upper Devonian Lost Burro Formation, Panamint Range, Death Valley National Park. Figure 30. |
Fossil Image From United States Geological Survey Professional Paper 494-A Stratigraphy and Structure Death Valley, California by Charles B. Hunt and Don R. Mabey, 1966
| "Cabbage" stromatoporoids (a variety of sponge) in cross-section, revealing their distinctive concentrically laminated structure, from the middle of the Upper Devonian Lost Burro Formation, Panamint Range, Death Valley National Park. Figure 30. |