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Clypeolampas
''Clypeolampas'' is a genus of sea urchins belonging to the order Clypeasteroida Sand dollars (also known as sea cookies or snapper biscuits in New Zealand and Brazil, or pansy shells in South Africa) are species of flat, burrowing sea urchins belonging to the Order (biology), order Clypeasteroida. Some species within the or .... Fossil record This family is known in Cretaceous the fossil record of Spain and Turkey. Genera Species within this genus include: *''Clypeolampas lestelli'' Cotteau 1887 *''Clypeolampas ovatus'' Lamarck 1816 *''Clypeolampas perovalis'' Arnaud 1877 References {{Taxonbar, from=Q28087700 Clypeasteroida ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clypeolampadidae
''Clypeolampadidae'' is a family of sea urchins belonging to the order Clypeasteroida. Fossil record This family is known in Cretaceous the fossil record of France, Oman, Spain and Turkey. Genera Genera within this family include: * ''Clypeolampas ''Clypeolampas'' is a genus of sea urchins belonging to the order Clypeasteroida Sand dollars (also known as sea cookies or snapper biscuits in New Zealand and Brazil, or pansy shells in South Africa) are species of flat, burrowing sea urchin ...'' Pomel, 1869 * '' Hungaresia'' Szörényi, 1955 References {{Taxonbar, from=Q22583295 Clypeasteroida Echinoderm families ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cretaceous
The Cretaceous ( ) is a geological period that lasted from about 143.1 to 66 mya (unit), million years ago (Mya). It is the third and final period of the Mesozoic Era (geology), Era, as well as the longest. At around 77.1 million years, it is the ninth and longest geological period of the entire Phanerozoic. The name is derived from the Latin , 'chalk', which is abundant in the latter half of the period. It is usually abbreviated K, for its German translation . The Cretaceous was a period with a relatively warm climate, resulting in high Sea level#Local and eustatic, eustatic sea levels that created numerous shallow Inland sea (geology), inland seas. These oceans and seas were populated with now-extinct marine reptiles, ammonites, and rudists, while dinosaurs continued to dominate on land. The world was largely ice-free, although there is some evidence of brief periods of glaciation during the cooler first half, and forests extended to the poles. Many of the dominant taxonomic gr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Museo Nacional De Ciencias Naturales
The National Museum of Natural Sciences () is a natural history museum in Madrid, Spain. Dependent on the Ministry of Science, it is one of the National Museums of Spain, and it is managed by the Spanish National Research Council (CSIC). History The museum traces back its origin to the ', created in 1771 by Charles III. The ''gabinete'' was refounded as ''Real Museo de Historia Natural'' in 1815. It changed names until its current denomination, received in 1913. The museum originally hosted a collection donated by a Spanish merchant, Pedro F. Dávila. In 1867, some facilities were separated to give birth to other museums (Archeology, Botanic Garden, Zoologic Garden). In 1987 the museum was restructured and enlarged with funds from two smaller museums. Collection Some of the more relevant components of the museum collections are: * The holotype specimen of '' Megatherium americanum,'' brought from Argentina in 1789. * A '' Diplodocus'' donated by Andrew Carnegie to Alfonso X ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Animal
Animals are multicellular, eukaryotic organisms in the Biology, biological Kingdom (biology), kingdom Animalia (). With few exceptions, animals heterotroph, consume organic material, Cellular respiration#Aerobic respiration, breathe oxygen, have myocytes and are motility, able to move, can reproduce sexually, and grow from a hollow sphere of Cell (biology), cells, the blastula, during embryonic development. Animals form a clade, meaning that they arose from a single common ancestor. Over 1.5 million extant taxon, living animal species have been species description, described, of which around 1.05 million are insects, over 85,000 are molluscs, and around 65,000 are vertebrates. It has been estimated there are as many as 7.77 million animal species on Earth. Animal body lengths range from to . They have complex ecologies and biological interaction, interactions with each other and their environments, forming intricate food webs. The scientific study of animals is known as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinodermata
An echinoderm () is any animal of the phylum Echinodermata (), which includes starfish, brittle stars, sea urchins, sand dollars and sea cucumbers, as well as the sessile sea lilies or "stone lilies". While bilaterally symmetrical as larvae, as adults echinoderms are recognisable by their usually five-pointed radial symmetry (pentamerous symmetry), and are found on the sea bed at every ocean depth from the intertidal zone to the abyssal zone. The phylum contains about 7,600 living species, making it the second-largest group of deuterostomes after the chordates, as well as the largest marine animal, marine-only phylum. The first definitive echinoderms appeared near the start of the Cambrian. Echinoderms are important both ecologically and geologically. Ecologically, there are few other groupings so abundant in the deep sea, as well as continental shelf, shallower oceans. Most echinoderms are able to asexual reproduction, reproduce asexually and regeneration (biology), regenerat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Echinoidea
Sea urchins or urchins () are echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body covered by a spiny protective tests (hard shells), typically from across. Sea urchins move slowly, crawling with their tube feet, and sometimes pushing themselves with their spines. They feed primarily on algae but also eat slow-moving or sessile animals such as crinoids and sponges. Their predators include sharks, sea otters, starfish, wolf eels, and triggerfish. Like all echinoderms, adult sea urchins have pentagonal symmetry with their pluteus larvae featuring bilateral (mirror) symmetry; The latter indicates that they belong to the Bilateria, along with chordates, arthropods, annelids and molluscs. Sea urchins are found in every ocean and in every climate, from the tropics to the polar regions, and inhabit marine benthic (sea bed) habitats, from ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clypeasteroida
Sand dollars (also known as sea cookies or snapper biscuits in New Zealand and Brazil, or pansy shells in South Africa) are species of flat, burrowing sea urchins belonging to the Order (biology), order Clypeasteroida. Some species within the order, not quite as flat, are known as Sea biscuit (echinoderm), sea biscuits. Sand dollars can also be called "sand cakes" or "cake urchins". Names The term "sand dollar" derives from the appearance of the Test (biology), tests (skeletons) of dead individuals after being washed ashore. The test lacks its velvet-like skin of spines and has often been bleached white by sunlight. To beachcombers of the past, this suggested a large, silver coin, such as the old Spanish dollar, which had a diameter of 38–40 mm. Other names for the sand dollar include ''sand cakes, pansy shells, snapper biscuits, cake urchins'', and ''sea cookies''. In South Africa, they are known as ''pansy shells'' from their suggestion of a five-petaled pansy, garden f ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Porter M
Porter may refer to: Companies * Porter Airlines, Canadian airline based in Toronto * Porter Chemical Company, a defunct U.S. toy manufacturer of chemistry sets * Porter Motor Company, defunct U.S. car manufacturer * H.K. Porter, Inc., a locomotive manufacturer People * Porter (name), an English surname and given name (including a list of persons with the name) Occupations * Porter (carrier), a person who carries objects * Porter (college), a member of staff in many of the colleges of the Universities of Cambridge, Lancaster, Oxford and Durham * Porter (railroad), a railroad employee who assists passengers at stations * Porter (monastery), the monk appointed to be the one who interacts with the public * Pullman porter, a railroad employee who assists passengers on sleeping cars * Deal porter, a dockworker specializing in handling baulks of softwood * Doorman (profession), American English for the occupation known in British English as porter * Groom Porter, official in charg ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sea Urchin
Sea urchins or urchins () are echinoderms in the class (biology), class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal zone to deep seas of . They typically have a globular body covered by a spine (zoology), spiny protective test (biology), tests (hard shells), typically from across. Sea urchins move slowly, crawling with their tube feet, and sometimes pushing themselves with their spines. They feed primarily on algae but also eat slow-moving or sessility (motility), sessile animals such as crinoids and sponges. Their predators include sharks, sea otters, starfish, wolf eels, and triggerfish. Like all echinoderms, adult sea urchins have pentagonal symmetry with their Echinoderm#Larval development, pluteus larvae featuring Bilateral symmetry, bilateral (mirror) symmetry; The latter indicates that they belong to the Bilateria, along with chordates, arthropods, annelids and molluscs. Sea urchins are found in every ocea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
