Ebook: A sea without fish: life in the Ordovician sea of the Cincinnati region

Introduction -- Science in the Hinterland : the Cincinnati School of Paleontology -- Naming and classifying organisms -- Rocks, fossils, and time -- Algae : the base of the food chain -- Poriferans and Cnidarians : sponges, corals, and jellyfish -- Bryozoans : "twigs" and "bones" -- Brachiopods : the other bivalves -- Molluscs : hard, but with a soft center -- Annelids and worm-like fossils -- Arthropods : trilobites and other legged creatures -- Echinoderms : a world unto themselves -- Graptolites and conodonts : our closest relatives? -- Type-cincinnatian trace fossils : tracks, trails, and burrows -- Paleogeography and paleoenvironment / by Steven M. Holland -- Life in the Cincinnatian sea -- Diving in the Cincinnatian sea.