About the Book
Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Pages: 59. Chapters: Echinoderm, Sea urchin, Crinoid, Benthos, List of prehistoric echinoderms, Starfish, Sea cucumber, Brittle star, Henricia leviuscula, Slate pencil urchin, List of echinoderms of the Houtman Abrolhos, Aglaocrinus, Edrioasteroidea, Trepanging, Blastoid, Cucumaria miniata, Common sunstar, Strongylocentrotus purpuratus, Homalozoa, Eleutherozoa, Aaglacrinus, Helicoplacus, Mitrate, Eocrinoidea, Gogia, Brachiolaria, Cothurnocystis, Urasterella, Cystoids, Stylophora, Tube feet, Echmatocrinus, Bolboporites, Dipleurula, Camptostroma, Bipinnaria, Kailidiscus, Ophiocistioidea, Giant sea star, Cucumaria echinata, Pleurocystites, Plesiocidaris, Cryptoblastus, Echinosphaerites, Geocoma, Blastozoa, Paleocoma, Pentremites, Gogiida, Deltoblastus, Euechinoidea, Stenaster, Stelleroidea, Eocrinidae, Echinopedinidae, Lichenoides, Eocystites, Alphacrinus, Echinozoa, Pelmatozoa, Solute, Echinocystitoida. Excerpt: This list of prehistoric echinoderms is an attempt to create a comprehensive listing of all genera that have ever been included in the Echinoderms that have been preserved as fossils. This list excludes purely vernacular terms. It includes all commonly accepted genera, but also genera that are now considered invalid, doubtful (nomina dubia), or were not formally published (nomina nuda), as well as junior synonyms of more established names, and genera that are no longer considered echinoderms. The list includes thousands of genera. Naming conventions and terminology follow the International Code of Zoological Nomenclature. Technical terms used include: Cystoid Echinosphaerites, Ordovician, Estonia. Uperocrinus nashvillae Uncited genera can be attributed to: Sea urchins or urchins are small, spiny, globular animals which, with their close kin, such as sand dollars, constitute the class Echinoidea of the echinoderm phylum. They ...
