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Hyocrinida
Hyocrinida is an order of sea lilies which contains a single extant family, Hyocrinidae ''Hyocrinidae'' is a family of echinoderms belonging to the order Hyocrinida. Genera: * ''Ailsacrinus'' Mironov & Sorokina, 1998 * ''Anachalypsicrinus'' AM Clark, 1973 * ''Belyaevicrinus'' (Mironov & Sorokina, 1998) * ''Calamocrinus'' Agassiz, 18 .... Characteristics Members of this order have long slender stems consisting of a large number of identical columnar units. There are no cirri, and the basal disc of the stem attaches directly to the substrate. The calyx is globular or conical, and consists of five widely-spaced, undivided arms attached to five radial ossicles. Distribution Most hyocrinids are found at depths below , in the range , in all the ocean basins and on seamounts. References Articulata (Crinoidea) {{crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyocrinida
Hyocrinida is an order of sea lilies which contains a single extant family, Hyocrinidae ''Hyocrinidae'' is a family of echinoderms belonging to the order Hyocrinida. Genera: * ''Ailsacrinus'' Mironov & Sorokina, 1998 * ''Anachalypsicrinus'' AM Clark, 1973 * ''Belyaevicrinus'' (Mironov & Sorokina, 1998) * ''Calamocrinus'' Agassiz, 18 .... Characteristics Members of this order have long slender stems consisting of a large number of identical columnar units. There are no cirri, and the basal disc of the stem attaches directly to the substrate. The calyx is globular or conical, and consists of five widely-spaced, undivided arms attached to five radial ossicles. Distribution Most hyocrinids are found at depths below , in the range , in all the ocean basins and on seamounts. References Articulata (Crinoidea) {{crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyocrinida Okeanos 2021
Hyocrinida is an order of sea lilies which contains a single extant family, Hyocrinidae ''Hyocrinidae'' is a family of echinoderms belonging to the order Hyocrinida. Genera: * ''Ailsacrinus'' Mironov & Sorokina, 1998 * ''Anachalypsicrinus'' AM Clark, 1973 * ''Belyaevicrinus'' (Mironov & Sorokina, 1998) * ''Calamocrinus'' Agassiz, 18 .... Characteristics Members of this order have long slender stems consisting of a large number of identical columnar units. There are no cirri, and the basal disc of the stem attaches directly to the substrate. The calyx is globular or conical, and consists of five widely-spaced, undivided arms attached to five radial ossicles. Distribution Most hyocrinids are found at depths below , in the range , in all the ocean basins and on seamounts. References Articulata (Crinoidea) {{crinoidea-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hyocrinidae
''Hyocrinidae'' is a family of echinoderms belonging to the order Hyocrinida Hyocrinida is an order of sea lilies which contains a single extant family, Hyocrinidae ''Hyocrinidae'' is a family of echinoderms belonging to the order Hyocrinida. Genera: * ''Ailsacrinus'' Mironov & Sorokina, 1998 * ''Anachalypsicrinus'' A .... Genera: * '' Ailsacrinus'' Mironov & Sorokina, 1998 * '' Anachalypsicrinus'' AM Clark, 1973 * '' Belyaevicrinus'' (Mironov & Sorokina, 1998) * '' Calamocrinus'' Agassiz, 1890 * '' Camaecrinus'' Mironov & Sorokina, 1998 * '' Chambersaecrinus'' Mironov & Sorokina, 1998 * '' Dumetocrinus'' Mironov & Sorokina, 1998 * '' Feracrinus'' Mironov & Sorokina, 1998 * '' Gephyrocrinus'' Koehler & Bather, 1902 * '' Hyocrinus'' Thomson, 1876 * '' Lamberticrinus'' Roux, 2017 * '' Laubiericrinus'' Roux, 2004 * '' Parahyocrinus'' Roux, 2017 * '' Ptilocrinus'' Clark, 1907 * '' Thalassocrinus'' Clark, 1911 * '' Tiburonicrinus'' Roux, 2017 References Hyocrinida Echinod ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crinoidea
Crinoids are marine animals that make up the class Crinoidea. Crinoids that are attached to the sea bottom by a stalk in their adult form are commonly called sea lilies, while the unstalked forms are called feather stars or comatulids, which are members of the largest crinoid order, Comatulida. Crinoids are echinoderms in the phylum Echinodermata, which also includes the starfish, brittle stars, sea urchins and sea cucumbers. They live in both shallow water and in depths as great as . Adult crinoids are characterised by having the mouth located on the upper surface. This is surrounded by feeding arms, and is linked to a U-shaped gut, with the anus being located on the oral disc near the mouth. Although the basic echinoderm pattern of fivefold symmetry can be recognised, in most crinoids the five arms are subdivided into ten or more. These have feathery pinnules and are spread wide to gather planktonic particles from the water. At some stage in their lives, most crinoids have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Kingdom (biology), biological kingdom Animalia. With few exceptions, animals Heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, are Motility, able to move, can Sexual reproduction, reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of Cell (biology), cells, the blastula, during Embryogenesis, embryonic development. Over 1.5 million Extant taxon, living animal species have been Species description, described—of which around 1 million are Insecta, insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have Ecology, complex interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as zoology. Most living animal species are in Bilateria, a clade whose members have a Symmetry in biology#Bilate ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinodermata
An echinoderm () is any member of the phylum Echinodermata (). The adults are recognisable by their (usually five-point) radial symmetry, and include starfish, brittle stars, sea urchins, sand dollars, and sea cucumbers, as well as the sea lilies or "stone lilies". Adult echinoderms are found on the sea bed at every ocean depth, from the intertidal zone to the abyssal zone. The phylum contains about 7,000 living species, making it the second-largest grouping of deuterostomes, after the chordates. Echinoderms are the largest entirely marine phylum. The first definitive echinoderms appeared near the start of the Cambrian. The echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the biotic desert of the deep sea, as well as shallower oceans. Most echinoderms are able to reproduce asexually and regenerate tissue, organs, and limbs; in some cases, they can undergo complete regeneration from a single limb. Geolo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Order (biology)
Order ( la, wikt:ordo#Latin, ordo) is one of the eight major hierarchical taxonomic ranks in Linnaean taxonomy. It is classified between Family_(biology), family and Class_(biology), class. In biological classification, the order is a taxonomic rank used in the classification of organisms and recognized by the nomenclature codes. An immediately higher rank, superorder, is sometimes added directly above order, with suborder directly beneath order. An order can also be defined as a group of related families. What does and does not belong to each order is determined by a taxonomist, as is whether a particular order should be recognized at all. Often there is no exact agreement, with different taxonomists each taking a different position. There are no hard rules that a taxonomist needs to follow in describing or recognizing an order. Some taxa are accepted almost universally, while others are recognized only rarely. The name of an order is usually written with a capital letter. Fo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Substrate (biology)
In biology, a substrate is the surface on which an organism (such as a plant, fungus, or animal) lives. A substrate can include biotic or abiotic materials and animals. For example, encrusting algae that lives on a rock (its substrate) can be itself a substrate for an animal that lives on top of the algae. Inert substrates are used as growing support materials in the hydroponic cultivation of plants. In biology substrates are often activated by the nanoscopic process of substrate presentation. In agriculture and horticulture * Cellulose substrate * Expanded clay aggregate (LECA) * Rock wool * Potting soil * Soil In animal biotechnology Requirements for animal cell and tissue culture Requirements for animal cell and tissue culture are the same as described for plant cell, tissue and organ culture (In Vitro Culture Techniques: The Biotechnological Principles). Desirable requirements are (i) air conditioning of a room, (ii) hot room with temperature recorder, (iii) microscope r ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seamount
A seamount is a large geologic landform that rises from the ocean floor that does not reach to the water's surface (sea level), and thus is not an island, islet or cliff-rock. Seamounts are typically formed from extinct volcanoes that rise abruptly and are usually found rising from the seafloor to in height. They are defined by oceanographers as independent features that rise to at least above the seafloor, characteristically of conical form.IHO, 2008. Standardization of Undersea Feature Names: Guidelines Proposal form Terminology, 4th ed. International Hydrographic Organization and Intergovernmental Oceanographic Commission, Monaco. The peaks are often found hundreds to thousands of meters below the surface, and are therefore considered to be within the deep sea. During their evolution over geologic time, the largest seamounts may reach the sea surface where wave action erodes the summit to form a flat surface. After they have subsided and sunk below the sea surface such flat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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