Information om | Engelska ordet CRINOIDS

Exempel på hur man kan använda CRINOIDS i en mening

• He worked hard as investigator, author, editor, demonstrator and lecturer throughout his life; but it was his researches in marine zoology, notably in the lower organisms, as foraminifera and crinoids, that were most valuable.
• A holdfast is a root-like structure that anchors aquatic sessile organisms, such as seaweed, other sessile algae, stalked crinoids, benthic cnidarians, and sponges, to the substrate.
• The limestone contains marine fossils including crinoids, brachiopods, gastropods, horn corals, and bryozoans.
• About the year 1835 he began to devote his leisure to the investigation of the Carboniferous fossils around Liège, and ultimately he became distinguished for his researches on the palaeontology of the Palaeozoic rocks, and especially for his descriptions of the molluscs, brachiopods, crustaceans and crinoids of the Carboniferous limestone of Belgium.
• The limestones date from the Visean period (Lower Carboniferous), formed as sediments in a tropical sea about 350 million years ago, and compressed into horizontal strata with fossil corals, crinoids, sea urchins, and ammonites.
• Bryozoans, brachiopods, pelecypods, horn corals, cephalopods, gastropods, crinoids, trilobites and mollusks.
• The fossils include corals in great variety (Halysites catenularis, Favosites aspera, Heliolites interstinctus), crinoids (Crotalocrinus, Marsupiocrinus, Periechocrinus), often very beautiful specimens, and trilobites (Calymene blumenbachii, the Dudley locust, Phacops caudatus and Illaenus (Bumastus) barriensis).
• There are many fossils to be found in this area from approximately 500 million years ago (in a time before dinosaurs) including coral, crinoids, trilobites, cephalopods, gastropods, pelecypods, stromatolites, and brachiopods.
• The limestones are very fossiliferous, and contain evidence of the abundant marine life that existed at the time of their creation, including fossil crinoids (sea-lilies), corals and brachiopods.
• They include a variety of brachiopods, as well as trilobites, molluscs, echinoderms (including starfish, crinoids, and the extinct blastoids and cystoids), foraminifera and fish with jaws (placoderms).
• As his work developed a stratigraphic and sedimentological framework, he turned his attention to invertebrate paleontology, working on corals, crinoids, gastropods and bryozoans.
• thumbAlmost all Silurian rocks in Illinois are deep-water limestone and dolomite deposits; reef habitats were common, and fossils of reef organisms are locally highly abundant, including corals, brachiopods, crinoids, stromatoporoids, and bryozoans.
• The species of Gogia, like other eocrinoids, were not closely related to the true crinoids, instead, being more closely related to the blastoids.
• For the bird's nest sponge associated species include ascidians, Foraminifera, polychaetes and burrowing anemones, whilst for the encrusting sponge beds species such as anemones, ascidians, crinoids and ophiuroids are found.
• Besides the trackways, a variety of fossils can be found, including belemnites, crinoids, and shrimp burrows.
• They include a variety of brachiopods, as well as trilobites, molluscs, echinoderms (including starfish, crinoids, and the extinct blastoids and cystoids), foraminifera and fish with jaws (placoderms).
• The body disk that is covered with a leathery tegumen containing calcareous plates (in crinoids and ophiuroids the main part of the body where the viscera are located).
• Around the same time, James Hall produced his comprehensive, many volumes of Paleontology of New York State (1847 to 1894), based on his years of collecting trilobites, graptolites, brachiopods, crinoids, echinoids, mollusks and other ancient marine invertebrates.
• Preserved mostly as internal molds in dolomite, these fossils include a wide range of Silurian marine invertebrate groups including trilobites, crinoids, tabulate and rugose corals, brachiopods, cephalopods, and gastropods.
• It occurs either as solitary individuals or in pairs, among the branches of gorgonians, in floating weeds, or crinoids where the feed on mysids and small benthic shrimp.

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