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Enoplometopoidea
Reef lobsters, ''Enoplometopus'', are a genus of small lobsters that live on reefs in the Indo-Pacific, Caribbean and warmer parts of the Atlantic Ocean. Description Species of ''Enoplometopus'' occur from coral reefs at depths of less than to rocky reefs at depths of . They are brightly coloured, with stripes, rings, or spots. They are typically mainly red, orange, purplish and white. Reef lobsters are small (depending on species, up to ), nocturnal (spending the day in caves or crevices), and very timid. The species can be distinguished by their colouration and morphology. As a result of their bright colours, they are popular in the aquarium trade, and unregulated collection combined with destruction of coral reefs may threaten some species. Due to uncertainty over the impact of these potential threats, the majority are considered data deficient by the International Union for Conservation of Nature. Reef lobsters are distinguished from clawed lobsters (family Nephrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Michèle De Saint Laurent
Michèle de Saint Laurent (December 9, 1926 – July 11, 2003) was a French carcinologist. She spent most of her career at the ' in Paris, working on the systematics of Decapoda, decapod crustaceans; her major contributions were to hermit crabs and Thalassinidea, and she also co-described ''Neoglyphea'', a living fossil discovered in 1975. Biography Michèle de Saint Laurent was born on December 9, 1926 at Fontainebleau, near Paris.Obituary by Jacques Forest, originally published in French as #Forest1, Forest (2004a), and later published in translation by Gary C. B. Poore as #Forest2, Forest (2004b). Her father, an army officer, retired on grounds of ill health in 1938 and moved with his family to Plestin-les-Grèves in Brittany; he died in 1939. During the World War II, Second World War, Michèle's mother concealed British airmen from the Nazi regime, for which she was convicted in 1942 by a military tribunal and sent to Ravensbrück concentration camp, where she died in 1944. Mi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enoplometopus Pictus
Reef lobsters, ''Enoplometopus'', are a genus of small lobsters that live on reefs in the Indo-Pacific, Caribbean and warmer parts of the Atlantic Ocean. Description Species of ''Enoplometopus'' occur from coral reefs at depths of less than to rocky reefs at depths of . They are brightly coloured, with stripes, rings, or spots. They are typically mainly red, orange, purplish and white. Reef lobsters are small (depending on species, up to ), nocturnal (spending the day in caves or crevices), and very timid. The species can be distinguished by their colouration and morphology. As a result of their bright colours, they are popular in the aquarium trade, and unregulated collection combined with destruction of coral reefs may threaten some species. Due to uncertainty over the impact of these potential threats, the majority are considered data deficient by the International Union for Conservation of Nature. Reef lobsters are distinguished from clawed lobsters (family Nephropidae) b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Enoplometopus Antillensis
''Enoplometopus antillensis'' (commonly dwarf reef lobster, Atlantic reef lobster or flaming reef lobster) is a species of reef lobster endemic to warmer parts of the Atlantic Ocean. It is found at depths of in rocky and coral reefs, where it hides in small crevices. Dwarf reef lobsters are prized in the home aquarium An aquarium (plural: ''aquariums'' or ''aquaria'') is a vivarium of any size having at least one transparent side in which aquatic plants or animals are kept and displayed. Fishkeepers use aquaria to keep fish, invertebrates, amphibians, aq ... hobby for their bright colors and small size. References External links * Decapods Arthropods of the Dominican Republic Crustaceans of the Atlantic Ocean Crustaceans described in 1865 Taxa named by Christian Frederik Lütken {{Decapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Triassic
The Triassic ( ) is a geologic period and system which spans 50.6 million years from the end of the Permian Period 251.902 million years ago ( Mya), to the beginning of the Jurassic Period 201.36 Mya. The Triassic is the first and shortest period of the Mesozoic Era. Both the start and end of the period are marked by major extinction events. The Triassic Period is subdivided into three epochs: Early Triassic, Middle Triassic and Late Triassic. The Triassic began in the wake of the Permian–Triassic extinction event, which left the Earth's biosphere impoverished; it was well into the middle of the Triassic before life recovered its former diversity. Three categories of organisms can be distinguished in the Triassic record: survivors from the extinction event, new groups that flourished briefly, and other new groups that went on to dominate the Mesozoic Era. Reptiles, especially archosaurs, were the chief terrestrial vertebrates during this time. A specialized subgroup of archo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eryma
''Eryma'' is a genus of fossil lobster-like crustacean Crustaceans (Crustacea, ) form a large, diverse arthropod taxon which includes such animals as decapods, seed shrimp, branchiopods, fish lice, krill, remipedes, isopods, barnacles, copepods, amphipods and mantis shrimp. The crustacean group ...s, containing 44 species. References External links * Glypheidea Jurassic crustaceans Prehistoric arthropods of North America {{Decapod-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Extinct
Extinction is the termination of a kind of organism or of a group of kinds (taxon), usually a species. The moment of extinction is generally considered to be the death of the last individual of the species, although the capacity to breed and recover may have been lost before this point. Because a species' potential range may be very large, determining this moment is difficult, and is usually done retrospectively. This difficulty leads to phenomena such as Lazarus taxa, where a species presumed extinct abruptly "reappears" (typically in the fossil record) after a period of apparent absence. More than 99% of all species that ever lived on Earth, amounting to over five billion species, are estimated to have died out. It is estimated that there are currently around 8.7 million species of eukaryote globally, and possibly many times more if microorganisms, like bacteria, are included. Notable extinct animal species include non-avian dinosaurs, saber-toothed cats, dodos, m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Fossil Record
A fossil (from Classical Latin , ) is any preserved remains, impression, or trace of any once-living thing from a past geological age. Examples include bones, shells, exoskeletons, stone imprints of animals or microbes, objects preserved in amber, hair, petrified wood and DNA remnants. The totality of fossils is known as the ''fossil record''. Paleontology is the study of fossils: their age, method of formation, and evolutionary significance. Specimens are usually considered to be fossils if they are over 10,000 years old. The oldest fossils are around 3.48 billion years old to 4.1 billion years old. Early edition, published online before print. The observation in the 19th century that certain fossils were associated with certain rock strata led to the recognition of a geological timescale and the relative ages of different fossils. The development of radiometric dating techniques in the early 20th century allowed scientists to quantitatively measure the absolu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reproduction
Reproduction (or procreation or breeding) is the biological process by which new individual organisms – "offspring" – are produced from their "parent" or parents. Reproduction is a fundamental feature of all known life; each individual organism exists as the result of reproduction. There are two forms of reproduction: asexual and sexual. In asexual reproduction, an organism can reproduce without the involvement of another organism. Asexual reproduction is not limited to single-celled organisms. The cloning of an organism is a form of asexual reproduction. By asexual reproduction, an organism creates a genetically similar or identical copy of itself. The evolution of sexual reproduction is a major puzzle for biologists. The two-fold cost of sexual reproduction is that only 50% of organisms reproduce and organisms only pass on 50% of their genes.John Maynard Smith ''The Evolution of Sex'' 1978. Sexual reproduction typically requires the sexual interaction of two specializ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleopod
The decapod ( crustaceans such as a crab, lobster, shrimp or prawn) is made up of 20 body segments grouped into two main body parts: the cephalothorax and the pleon (abdomen). Each segment may possess one pair of appendages, although in various groups these may be reduced or missing. They are, from head to tail: Cephalothorax Head # antennules # antennae #mandibles # first maxillae # second maxillae The head also bears the (usually stalked) compound eyes. The distal portion of a mandible or maxilla which has a sensory function is known as a palp. Thorax / pereon #first maxillipeds #second maxillipeds #third maxillipeds #first pereiopods #second pereiopods #third pereiopods #fourth pereiopods #fifth pereiopods Maxillipeds are appendages modified to function as mouthparts. Particularly in the less advanced decapods, these can be very similar to the pereiopods. Pereiopods are primarily walking legs and are also used for gathering food. They are also the ten legs from which decapo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Appendage
An appendage (or outgrowth) is an external body part, or natural prolongation, that protrudes from an organism's body. In arthropods, an appendage refers to any of the homologous body parts that may extend from a body segment, including antennae, mouthparts (including mandibles, maxillae and maxillipeds), gills, locomotor legs ( pereiopods for walking, and pleopods for swimming), sexual organs (gonopods), and parts of the tail (uropods). Typically, each body segment carries one pair of appendages. An appendage which is modified to assist in feeding is known as a maxilliped or gnathopod. In vertebrates, an appendage can refer to a locomotor part such as a tail, fins on a fish, limbs (legs, flippers or wings) on a tetrapod; exposed sex organ; defensive parts such as horns and antlers; or sensory organs such as auricles, proboscis ( trunk and snout) and barbels. Appendages may become ''uniramous'', as in insects and centipedes, where each appendage comprises a single ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pereiopod
The decapod (crustaceans such as a crab, lobster, shrimp or prawn) is made up of 20 body segments grouped into two main body parts: the cephalothorax and the pleon (abdomen). Each segment may possess one pair of appendages, although in various groups these may be reduced or missing. They are, from head to tail: Cephalothorax Head # antennules # antennae #mandibles # first maxillae # second maxillae The head also bears the (usually stalked) compound eyes. The distal portion of a mandible or maxilla which has a sensory function is known as a palp. Thorax / pereon #first maxillipeds #second maxillipeds #third maxillipeds #first pereiopods #second pereiopods #third pereiopods #fourth pereiopods #fifth pereiopods Maxillipeds are appendages modified to function as mouthparts. Particularly in the less advanced decapods, these can be very similar to the pereiopods. Pereiopods are primarily walking legs and are also used for gathering food. They are also the ten legs from which decapods ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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