| An explorer of the Paleozoic Era examines the wildly fossiliferous middle to late Devonian Guilmette Formation in White Pine County, Nevada. Every rock within view--to the skyline in distance--belongs to the Guilmette Formation, which here yields prodigious quantities of Paleozoic Era invertebrate animal remains: corals, stromatoporoids (extinct calcareous sponge), gastropods, brachiopods, crinoids, ostracods, and conodonts. |