Crinoids have graced the oceans for more than 500 million years. Among the most attractive fossils, crinoids had a key role in the ecology of marine communities through much of the fossil record, and their remains are prominent rock forming constituents of many limestones. This is the first comprehensive volume to bring together their form and function, classification, evolutionary history, occurrence, preservation and ecology. The main part of the book is devoted to assemblages of intact fossil crinoids, which are described in their geological setting in twenty-three chapters ranging from the Ordovician to the Tertiary. The final chapter deals with living sea lilies and feather stars. The volume is exquisitely illustrated with abundant photographs and line drawings of crinoids from sites around the world. This authoritative account recreates a fascinating picture of fossil crinoids for paleontologists, geologists, evolutionary and marine biologists, ecologists and amateur fossil collectors.
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1999 Cambridge University aboral anal sac anal tube animals articulations assemblages attached Ausich autotomy basal basin bedding planes benthic bioherms bivalves blastoids bottom brachials brachiopods Brett bryozoans burial calcareous calyx camerates carbonate Carlton Carlton E Chapter circlet cirri cladids clay Collection colonies columnals comatulids commonly corals Crailsheim Crawfordsville Cretaceous crinoid fauna crinoidal limestones crinoids crown cyrtocrinids deposited Devonian disarticulated disparids distal driftwood echinoderms Encrinus facies filtration fan flexible Formation Fossil Crinoids fossils groups Hagdorn Hans Hess hardground Hess holdfast individuals isocrinids layers lenses ligaments limestone living loboliths Mississippian muddy mudstones Muschelkalk Museum Natural History noids occur oolitic oral Ordovician ossicles Palaeozoic Pentacrinites Permian pinnules plates platyceratid preserved primibrachials proximal Quarry radials radicular cirri Redrawn reefs Saccocoma scyphocrinitids sea floor sediment Seirocrinus Shale shallow Silurian Simms skeletal slab species Springer stem strata substrate surface synarthrial tegmen tion Triassic Ubaghs Uintacrinus Upper well-preserved