| Scientific cross-sections of fusulinids from the middle Permian Arcturus Formation, White Pine County, Nevada. Photograph courtesy Raymond L. Knight; I edited and processed the image with photoshop. Specimens: 1 and 4--Parafusulina superlata; 2,3 and 6--Parafusulina sublinearis; 5 and 7--Parafusulina splendens. |