|
Ophiopsammus
''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae Ophiodermatidae are a family of brittle stars in the suborder Ophiurina. Systematics and phylogeny Some fossils date as far back as the Changhsingian age, late in the Permian The Permian ( ) is a geologic period and System (stratigraphy), str .... Species * '' Ophiopsammus aequalis'' * ''Ophiopsammus anchista'' * '' Ophiopsammus angusta'' * '' Ophiopsammus assimilis'' * '' Ophiopsammus maculata'' * '' Ophiopsammus yoldii'' References {{Taxonbar, from=Q3543526 Ophiuroidea genera Ophiurida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiopsammus Maculata
''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae Ophiodermatidae are a family of brittle stars in the suborder Ophiurina. Systematics and phylogeny Some fossils date as far back as the Changhsingian age, late in the Permian The Permian ( ) is a geologic period and System (stratigraphy), str .... Species * '' Ophiopsammus aequalis'' * ''Ophiopsammus anchista'' * '' Ophiopsammus angusta'' * '' Ophiopsammus assimilis'' * '' Ophiopsammus maculata'' * '' Ophiopsammus yoldii'' References {{Taxonbar, from=Q3543526 Ophiuroidea genera Ophiurida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiopsammus Aequalis
''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae. Species * '' Ophiopsammus aequalis'' * ''Ophiopsammus anchista'' * '' Ophiopsammus angusta'' * '' Ophiopsammus assimilis'' * ''Ophiopsammus maculata ''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae Ophiodermatidae are a family of brittle stars in the suborder Ophiurina. Systematics and phylogeny Some fossils date as far back as the Changhsingian age, late in t ...'' * '' Ophiopsammus yoldii'' References {{Taxonbar, from=Q3543526 Ophiuroidea genera Ophiurida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiopsammus Anchista
''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae. Species * ''Ophiopsammus aequalis'' * ''Ophiopsammus anchista'' * '' Ophiopsammus angusta'' * '' Ophiopsammus assimilis'' * ''Ophiopsammus maculata ''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae Ophiodermatidae are a family of brittle stars in the suborder Ophiurina. Systematics and phylogeny Some fossils date as far back as the Changhsingian age, late in t ...'' * '' Ophiopsammus yoldii'' References {{Taxonbar, from=Q3543526 Ophiuroidea genera Ophiurida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiopsammus Angusta
''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae. Species * ''Ophiopsammus aequalis'' * ''Ophiopsammus anchista'' * '' Ophiopsammus angusta'' * '' Ophiopsammus assimilis'' * ''Ophiopsammus maculata ''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae Ophiodermatidae are a family of brittle stars in the suborder Ophiurina. Systematics and phylogeny Some fossils date as far back as the Changhsingian age, late in t ...'' * '' Ophiopsammus yoldii'' References {{Taxonbar, from=Q3543526 Ophiuroidea genera Ophiurida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiopsammus Assimilis
''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae. Species * ''Ophiopsammus aequalis'' * ''Ophiopsammus anchista'' * ''Ophiopsammus angusta'' * '' Ophiopsammus assimilis'' * ''Ophiopsammus maculata ''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae Ophiodermatidae are a family of brittle stars in the suborder Ophiurina. Systematics and phylogeny Some fossils date as far back as the Changhsingian age, late in t ...'' * '' Ophiopsammus yoldii'' References {{Taxonbar, from=Q3543526 Ophiuroidea genera Ophiurida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiopsammus Yoldii
''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae. Species * ''Ophiopsammus aequalis'' * ''Ophiopsammus anchista'' * ''Ophiopsammus angusta'' * ''Ophiopsammus assimilis'' * ''Ophiopsammus maculata ''Ophiopsammus'' is a genus of brittle stars within the family Ophiodermatidae Ophiodermatidae are a family of brittle stars in the suborder Ophiurina. Systematics and phylogeny Some fossils date as far back as the Changhsingian age, late in t ...'' * '' Ophiopsammus yoldii'' References {{Taxonbar, from=Q3543526 Ophiuroidea genera Ophiurida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiodermatidae
Ophiodermatidae are a family of brittle stars in the suborder Ophiurina. Systematics and phylogeny Some fossils date as far back as the Changhsingian age, late in the Permian The Permian ( ) is a geologic period and System (stratigraphy), stratigraphic system which spans 47 million years from the end of the Carboniferous Period million years ago (Mya), to the beginning of the Triassic Period 251.9 Mya. It is the last ... period. The family includes the following living genera: * '' Bathypectinura'' * '' Cryptopelta'' * '' Diopederma'' * '' Distichophis'' * '' Ophiarachna'' * '' Ophiarachnella'' * '' Ophiochaeta'' * '' Ophiochasma'' * '' Ophioclastus'' * '' Ophioconis'' * ''Ophioconus'' (accepted as '' Ophioconis'') * '' Ophiocormus'' * '' Ophiocryptus'' * '' Ophioderma'' * '' Ophiodyscrita'' * '' Ophioncus'' * '' Ophiopaepale'' * '' Ophiopeza'' * ''Ophiopezella'' (accepted as '' Ophiopeza'') * '' Ophiopinax'' * '' Ophiopsammus'' * '' Ophiostegastus'' * '' Ophiurochaeta'' * '' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animalia
Animals are multicellular, eukaryotic organisms in the biological kingdom Animalia. With few exceptions, animals consume organic material, breathe oxygen, are able to move, can reproduce sexually, and go through an ontogenetic stage in which their body consists of a hollow sphere of cells, the blastula, during embryonic development. Over 1.5 million living animal species have been described—of which around 1 million are insects—but it has been estimated there are over 7 million animal species in total. Animals range in length from to . They have 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 bilaterally symmetric body plan. The Bilateria include the protostomes, containing animals such as nematodes, arthropods, flatworms, annelids and molluscs, and the deuterostomes, containing the echinode ... [...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] |
Ophiuroidea
Brittle stars, serpent stars, or ophiuroids (; ; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish. They crawl across the sea floor using their flexible arms for locomotion. The ophiuroids generally have five long, slender, whip-like arms which may reach up to in length on the largest specimens. The Ophiuroidea contain two large clades, Ophiurida (brittle stars) and Euryalida (basket stars). Over 2,000 species of brittle stars live today. More than 1,200 of these species are found in deep waters, greater than 200 m deep. Range The ophiuroids diverged in the Early Ordovician, about 500 million years ago. Ophiuroids can be found today in all of the major marine provinces, from the poles to the tropics. Basket stars are usually confined to the deeper parts of this range; Ophiuroids are known even from abyssal (>6,000 m) depths. However, brittle stars are also common members of reef communities, where the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ophiurida
The Ophiurida are an order of echinoderms within the class Ophiuroidea. It includes the vast majority of living brittle stars. Characteristics Ophiurida have bursae for respiration and excretion, and dorsal and ventral arm shields are present and usually well developed. Arms are unbranched and incapable of coiling vertically. Most are five-armed, some with 4 or 6 arms as an abnormality, but others properly bear six or seven arms. The madreporite is on the oral surface. The digestive glands are entirely within the central disc. They move their arms side to side by means of ball-and-socket joints. Tropical species tend to contrast color from the environment, but most others prefer to blend in. These biochromes do not include echinochromes. Systematics and phylogeny There is currently no consensus as to the subdivision of the Ophiurida. The order has been divided into the following suborders and infraorders * Ophiomyxina * Ophiurina ** Hemieuryalina ** Chilophiurina ** Gna ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brittle Star
Brittle stars, serpent stars, or ophiuroids (; ; referring to the serpent-like arms of the brittle star) are echinoderms in the class Ophiuroidea, closely related to starfish. They crawl across the sea floor using their flexible arms for locomotion. The ophiuroids generally have five long, slender, whip-like arms which may reach up to in length on the largest specimens. The Ophiuroidea contain two large clades, Ophiurida (brittle stars) and Euryalida (basket stars). Over 2,000 species of brittle stars live today. More than 1,200 of these species are found in deep waters, greater than 200 m deep. Range The ophiuroids diverged in the Early Ordovician, about 500 million years ago. Ophiuroids can be found today in all of the major marine provinces, from the poles to the tropics. Basket stars are usually confined to the deeper parts of this range; Ophiuroids are known even from abyssal (>6,000 m) depths. However, brittle stars are also common members of reef communities, where t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
