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Myriapod
Myriapods () are the members of subphylum Myriapoda, containing arthropods such as millipedes and centipedes. The group contains about 13,000 species, all of them terrestrial. Although molecular evidence and similar fossils suggests a diversification in the Cambrian Period, the oldest known fossil record of myriapods dates between the Late Silurian and Early Devonian, with '' Pneumodesmus'' preserving the earliest known evidence of air-breathing on land. Other early myriapod fossil species around the similar time period include '' Kampecaris obanensis'' and '' Archidesmus'' sp. The phylogenetic classification of myriapods is still debated. The scientific study of myriapods is myriapodology, and those who study myriapods are myriapodologists. Anatomy Myriapods have a single pair of antennae and, in most cases, simple eyes. Exceptions are the two classes of symphylans and pauropods, the millipede order Polydesmida and the centipede order Geophilomorpha, which are all ey ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Millipede
Millipedes (originating from the Latin , "thousand", and , "foot") are a group of arthropods that are characterised by having two pairs of jointed legs on most body segments; they are known scientifically as the class Diplopoda, the name derived from this feature. Each double-legged segment is a result of two single segments fused together. Most millipedes have very elongated cylindrical or flattened bodies with more than 20 segments, while pill millipedes are shorter and can roll into a tight ball. Although the name "millipede" derives from Latin for "thousand feet", no species was known to have 1,000 or more until the discovery in 2020 of '' Eumillipes persephone'', which can have over 1,300 legs. There are approximately 12,000 named species classified into 16 orders and around 140 families, making Diplopoda the largest class of myriapods, an arthropod group which also includes centipedes and other multi-legged creatures. Most millipedes are slow-moving detritivores, eat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symphyla
Symphylans, also known as garden centipedes or pseudocentipedes, are soil-dwelling arthropods of the class Symphyla in the subphylum Myriapoda. Symphylans resemble centipedes, but are very small, non-venomous, and may or may not form a clade with centipedes. More than 200 species are known worldwide. Symphyla are primarily herbivores and detritus feeders living deep in the soil, under stones, in decaying wood, and in other moist places. They are rapid runners, can move quickly through the pores between soil particles, and are typically found from the surface down to a depth of about . They consume decaying vegetation, but can do considerable harm in an agricultural setting by consuming seeds, roots, and root hairs in cultivated soil. For example, the garden symphylan, '' Scutigerella immaculata'' can be a pest of crops. A species of '' Hanseniella'' has been recorded as a pest of sugar cane and pineapples in Queensland. A few species are found in trees and in caves. A species o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Symphylan
Symphylans, also known as garden centipedes or pseudocentipedes, are soil-dwelling arthropods of the class (biology), class Symphyla in the subphylum Myriapoda. Symphylans resemble centipedes, but are very small, non-venomous, and Myriapoda#Myriapod relationships, may or may not form a clade with centipedes. More than 200 species are known worldwide. Symphyla are primarily herbivores and detritus feeders living deep in the soil, under stones, in decaying wood, and in other moist places. They are rapid runners, can move quickly through the pores between soil particles, and are typically found from the surface down to a depth of about . They detritivore, consume decaying vegetation, but can do considerable harm in an Agriculture, agricultural setting by consuming seeds, roots, and root hairs in cultivated soil. For example, the garden symphylan, ''Scutigerella immaculata'' can be a pest of crops. A species of ''Hanseniella (myriapod), Hanseniella'' has been recorded as a pest of su ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chilopoda
Centipedes (from Neo-Latin , "hundred", and Latin language, Latin , "foot") are predatory arthropods belonging to the class Chilopoda (Ancient Greek , ''kheilos'', "lip", and Neo-Latin suffix , "foot", describing the forcipules) of the subphylum Myriapoda, an arthropod group which includes millipedes and other multi-legged animals. Centipedes are elongated segmented (Metamerism (biology), metameric) animals with one pair of legs per body segment. All centipedes are venomous and can inflict painful centipede bite, stings, injecting their venom through Pincer (biology), pincer-like appendages known as forcipules or toxicognaths, which are actually modified legs instead of fangs. Despite the name, no species of centipede has exactly 100 legs; the number of pairs of legs is an odd number that ranges from 15 pairs to 191 pairs. Centipedes are predominantly generalist (biology), generalist carnivore, carnivorous, hunting for a variety of prey items that can be overpowered. They have ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Centipede
Centipedes (from Neo-Latin , "hundred", and Latin , "foot") are predatory arthropods belonging to the class Chilopoda (Ancient Greek , ''kheilos'', "lip", and Neo-Latin suffix , "foot", describing the forcipules) of the subphylum Myriapoda, an arthropod group which includes millipedes and other multi-legged animals. Centipedes are elongated segmented ( metameric) animals with one pair of legs per body segment. All centipedes are venomous and can inflict painful stings, injecting their venom through pincer-like appendages known as forcipules or toxicognaths, which are actually modified legs instead of fangs. Despite the name, no species of centipede has exactly 100 legs; the number of pairs of legs is an odd number that ranges from 15 pairs to 191 pairs. Centipedes are predominantly generalist carnivorous, hunting for a variety of prey items that can be overpowered. They have a wide geographical range, which can be found in terrestrial habitats from tropical rainforests ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myriapodology
Myriapodology is the scientific study of myriapods which includes centipedes and millipedes. The field of myriapodology can also cover other myriapods such as pauropods and symphylans. Those who study myriapods are myriapodologists. Societies * International Society of Myriapodology Journals * ''International Journal of Myriapodology'' * ''Myriapodologica'' * ''Myriapod Memoranda'' Notable myriapodologists * Carl Attems (1868–1952), Austrian zoologist, described over 1,000 species * Stanley Graham Brade-Birks (1887-1982), English myriapodologist who with Hilda K Brade-Birks authored ''Notes on Myriapoda'': 23 papers jointly from 1916 to the 1920s; then twelve more solo until 1939 * Henry W. Brolemann (1860–1933), French myriapodologist, described around 500 species * Ralph Vary Chamberlin (1879–1967), American arachnologist and myriapodologist, described over 1,000 species * Orator F. Cook (1867–1949), American botanist and myriapodologist, co-described world's leggie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pauropoda
Pauropoda is a class of small, pale, millipede-like arthropods in the subphylum Myriapoda. More than 900 species in twelve families are found worldwide, living in soil and leaf mold. Pauropods look like centipedes or millipedes and may be a sister group of the latter, but a close relationship with Symphyla has also been posited. The name Pauropoda derives from the Greek ''pauros'' (meaning "small" or "few") and ''pous'', genitive ''podos'' (meaning "foot"), because most species in this class have only nine pairs of legs as adults, a smaller number than those found among adults in any other class of myriapods. Anatomy Pauropods are soft, cylindrical animals with bodies measuring only 0.3 to 2 mm in length. They have neither eyes nor hearts, although they do have sensory organs which can detect light. The body segments have ventral tracheal/spiracular pouches forming apodemes similar to those in millipedes and Symphyla, although the trachea usually connected to these structures ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arthropod
Arthropods ( ) are invertebrates in the phylum Arthropoda. They possess an arthropod exoskeleton, exoskeleton with a cuticle made of chitin, often Mineralization (biology), mineralised with calcium carbonate, a body with differentiated (Metamerism (biology), metameric) Segmentation (biology), segments, and paired jointed appendages. In order to keep growing, they must go through stages of moulting, a process by which they shed their exoskeleton to reveal a new one. They form an extremely diverse group of up to ten million species. Haemolymph is the analogue of blood for most arthropods. An arthropod has an open circulatory system, with a body cavity called a haemocoel through which haemolymph circulates to the interior Organ (anatomy), organs. Like their exteriors, the internal organs of arthropods are generally built of repeated segments. They have ladder-like nervous systems, with paired Anatomical terms of location#Dorsal and ventral, ventral Ventral nerve cord, nerve cord ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pauropod
Pauropoda is a class of small, pale, millipede-like arthropods in the subphylum Myriapoda. More than 900 species in twelve families are found worldwide, living in soil and leaf mold. Pauropods look like centipedes or millipedes and may be a sister group of the latter, but a close relationship with Symphyla has also been posited. The name Pauropoda derives from the Greek ''pauros'' (meaning "small" or "few") and ''pous'', genitive ''podos'' (meaning "foot"), because most species in this class have only nine pairs of legs as adults, a smaller number than those found among adults in any other class of myriapods. Anatomy Pauropods are soft, cylindrical animals with bodies measuring only 0.3 to 2 mm in length. They have neither eyes nor hearts, although they do have sensory organs which can detect light. The body segments have ventral tracheal/spiracular pouches forming apodemes similar to those in millipedes and Symphyla, although the trachea usually connected to these structur ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
