| Conodonts (minute tooth to jaw-like structures, unrelated to modern jaws, that served as a unique food-gathering apparatus in an extinct lamprey eel-like animal) from the lower Permian Reipe Spring Limestone, White Pine County, Nevada. Photograph courtesy David L. Clark; I edited and processed the image through photoshop. Specimens: 12--Ozarkodinid element; 13--Adetognathus gigantus; 14-16--Gondolella bella; 17--Gnathodus roundyi. |