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Heliaster Polybrachius
''Heliaster'' is a genus of Asteroidea (sea stars) in the family Heliasteridae. Species *''Heliaster canopus'' Perrier, 1875 *'' Heliaster cumingi'' (Gray, 1840) *''Heliaster helianthus'' (Lamarck, 1816) *'' Heliaster kubiniji'' Xantus, 1860 *'' Heliaster microbrachius'' Xantus, 1860 *'' Heliaster polybrachius'' H.L. Clark, 1907 *'' Heliaster solaris'' A.H. Clark, 1920 Fossil record Whole specimens of ''Heliaster microbrachius'' have been found preserved in calcite-cemented quartz in Southwest Florida that dates to the Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pliocene
The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58See the 2014 version of the ICS geologic time scale million years ago. It is the second and most recent epoch of the Neogene Period in the . The Pliocene follows the Epoch and is followed by the Epoch. Prior to the 2009 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliaster Microbrachius
''Heliaster microbrachius'' is a species of Asteroidea (sea stars) in the family Heliasteridae. Description ''Heliaster microbrachius'' can reach a diameter of . The body consists of a disc with several rays. At the bottom of the body there is a mouth opening. These sea stars have a very large disc, somewhat elevated, with more or less flattened rays. Abactinal spines are very numerous, small, more or less cylindrical. Color of abactinal surface may be purplish or grayish-black, with deep yellow or whitish spines. The actinal surface is whitish, yellowish, or brownish, with pedicels much darker than spines. These sea stars can regenerate lost or damaged parts of their body. Distribution This species is present in the east Pacific, along the west coast of South and Central America and Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south ... [...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] |
Asteroidea
Starfish or sea stars are star-shaped echinoderms belonging to the class Asteroidea (). Common usage frequently finds these names being also applied to ophiuroids, which are correctly referred to as brittle stars or basket stars. Starfish are also known as asteroids due to being in the class Asteroidea. About 1,900 species of starfish live on the seabed in all the world's oceans, from warm, tropical zones to frigid, polar regions. They are found from the intertidal zone down to abyssal depths, at below the surface. Starfish are marine invertebrates. They typically have a central disc and usually five arms, though some species have a larger number of arms. The aboral or upper surface may be smooth, granular or spiny, and is covered with overlapping plates. Many species are brightly coloured in various shades of red or orange, while others are blue, grey or brown. Starfish have tube feet operated by a hydraulic system and a mouth at the centre of the oral or lower surface. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Forcipulatida
The Forcipulatida are an order of sea stars, containing three families and 49 genera Genus ( plural genera ) is a taxonomic rank used in the biological classification of living and fossil organisms as well as viruses. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclat .... Description Forcipulatids share with the brisingid sea stars distinctive pedicellariae, consisting of a short stalk with three skeletal Ossicle (echinoderm), ossicles. Unlike that group, however, the forcipulatids tend to have more robust bodies. The order includes some well-known species, such as the common starfish, ''Asterias rubens''. This order can be commonly found from Nor Carolina in the United States all the way to Santos in Brazil. Phylogeny The order is divided into three families: * Family Asteriidae — 39 genera * Family Heliasteridae — two genera * Family Zoroasteridae — eight genera World Register of Marine Species gives ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliasteridae
The Heliasteridae are a family of Asteroidea (sea stars) in the order Forcipulatida. It includes two genera: ''Heliaster'' from the East Pacific (California to Chile, including offshore islands), and ''Labidiaster'' from southernmost South America, Antarctica and subantarctic oceans. Genera The World Register of Marine Species includes two genera and seven species within the family Heliasteridae: *'' Heliaster'' Gray, 1840'' **'' Heliaster canopus'' Perrier, 1875 **'' Heliaster cumingi'' (Gray, 1840) **'' Heliaster helianthus'' (Lamarck, 1816) **'' Heliaster kubiniji'' Xantus, 1860 **'' Heliaster microbrachius'' Xantus, 1860 **'' Heliaster polybrachius'' H.L. Clark, 1907 **'' Heliaster solaris'' A.H. Clark, 1920 *'' Labidiaster'' Lütken, 1872'' **''Labidiaster annulatus ''Labidiaster annulatus'', the Antarctic sun starfish or wolftrap starfish is a species of starfish in the family Heliasteridae. It is found in the cold waters around Antarctica and has a large number of slen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliaster Canopus
''Heliaster'' is a genus of Asteroidea (sea stars) in the family Heliasteridae. Species *'' Heliaster canopus'' Perrier, 1875 *'' Heliaster cumingi'' (Gray, 1840) *''Heliaster helianthus'' (Lamarck, 1816) *'' Heliaster kubiniji'' Xantus, 1860 *'' Heliaster microbrachius'' Xantus, 1860 *'' Heliaster polybrachius'' H.L. Clark, 1907 *'' Heliaster solaris'' A.H. Clark, 1920 Fossil record Whole specimens of ''Heliaster microbrachius'' have been found preserved in calcite-cemented quartz in Southwest Florida that dates to the Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliaster Cumingi
''Heliaster'' is a genus of Asteroidea (sea stars) in the family Heliasteridae. Species *''Heliaster canopus'' Perrier, 1875 *'' Heliaster cumingi'' (Gray, 1840) *''Heliaster helianthus'' (Lamarck, 1816) *'' Heliaster kubiniji'' Xantus, 1860 *''Heliaster microbrachius'' Xantus, 1860 *''Heliaster polybrachius'' H.L. Clark, 1907 *'' Heliaster solaris'' A.H. Clark, 1920 Fossil record Whole specimens of ''Heliaster microbrachius'' have been found preserved in calcite-cemented quartz in Southwest Florida that dates to the Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliaster Helianthus
The sun star ''(Heliaster helianthus)'' is a species of Asteroidea (starfish) in the family Heliasteridae. It is found in shallow water rocky habitats and in the kelp forests off the Pacific coast of Ecuador, Peru and Chile. Description ''H. helianthus'' is a multi-armed starfish, the number of arms usually being in the range 28 to 39, and the diameter typically being between . The aboral (upper) surface is brown with reddish tubercles while the oral (under) surface is white or yellowish-white. The disc is broad and the ossicles (plate-like components in the skin) in the proximal parts of the arms (closest to the disc) are connected to those of the neighbouring arms by connective tissue, forming inter-arm septa. This means that only a small part of each arm is free, the rest appearing to form part of the disc. Distribution and habitat This species is present in the southeastern Pacific Ocean, along the west coast of South America. Its range includes Ecuador, Peru and Chile, and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliaster Kubiniji
''Heliaster kubiniji'' is a species of starfish in the order Forcipulatida. It is commonly known as the gulf sun star, the common sun star or estrella de mar de golfo and it occurs in the intertidal zone of the Pacific coast of California, Mexico and Nicaragua. Description Juvenile gulf sun stars that have recently undergone metamorphosis have five arms, but more arms grow as the animals get bigger and adults have nineteen to twenty five arms. Large individuals are a mauve colour with black and green blotching and banding while juveniles are a darker colour. It typically has a diameter of about . Distribution The gulf sun star is native to the eastern Pacific Ocean and its range extends from Cape Mendocino in California to Nicaragua. Biology The gulf sea star is a predator and feeds on anything edible it can find including barnacles, bivalve molluscs, gastropod molluscs, sea anemones, chitons, sea cucumbers and crabs. Sea stars in this genus have planktonic feeding larvae th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Heliaster Polybrachius
''Heliaster'' is a genus of Asteroidea (sea stars) in the family Heliasteridae. Species *''Heliaster canopus'' Perrier, 1875 *'' Heliaster cumingi'' (Gray, 1840) *''Heliaster helianthus'' (Lamarck, 1816) *'' Heliaster kubiniji'' Xantus, 1860 *'' Heliaster microbrachius'' Xantus, 1860 *'' Heliaster polybrachius'' H.L. Clark, 1907 *'' Heliaster solaris'' A.H. Clark, 1920 Fossil record Whole specimens of ''Heliaster microbrachius'' have been found preserved in calcite-cemented quartz in Southwest Florida that dates to the Pliocene The Pliocene ( ; also Pleiocene) is the epoch in the geologic time scale that extends from 5.333 million to 2.58 [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
