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Polyxenidae
Polyxenidae is a family of millipedes in the order Polyxenida containing approximately 47 species in 19 genera. Adults in all species in this family have 13 pairs of legs. Genera * '' Allographis'' Silvestri 1948 * '' Anopsxenus'' Condé & Jacquemin 1963 * '' Chilexenus'' Silvestri 1948 * '' Eudigraphis ''Silvestri 1948 * ''Macroxenodes ''Silvestri 1948 * '' Macroxenus ''Brölemann 1917 * '' Mauritixenus ''Verhoeff 1939 * '' Mesoxenontus ''Silvestri 1948 * '' Miopsxenus'' Condé 1951 * '' Monographis'' Attems 1907 * '' Monoxenus ''Jones 1937 * '' Pauropsxenus'' Silvestri 1948 (Fossil species known from Burmese amber, Cenomanian) * '' Pollyxenus ''Latreille 1802/1803 * ''Polyxenus'' Latzel 1884 * '' Propolyxenus ''Silvestri 1948 * '' Saroxenus ''Cook 1896 * '' Silvestrus'' Jones 1937 * '' Typhloxenus'' Condé 1955 * '' Unixenus'' Jones 1944 * †'' Electroxenus'' Nguyen Duy-Jacquemin and Azar 2004 Lebanese amber, Barremian The Barremian is an age in the geologic timescale (or ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyxenida
Polyxenida is an order of millipedes readily distinguished by a unique body plan consisting of a soft, non-calcified body ornamented with tufts of bristles – traits that have inspired the common names "bristly millipedes" or "pincushion millipedes". There are at least 86 species in four families worldwide, and are the only living members of the subclass Penicillata. Description Polyxenida differ from other millipedes in having a soft, non-calcified exoskeleton, unique tufts of bristles or setae, fewer legs (no more than 17 pairs), and an absence of copulatory appendages in males. Individuals are small, not exceeding 7 millimeters (0.28 inches). Adults in most species have 13 pairs of legs, but in one species ('' Lophoturus madecassus''), they have only 11 pairs of legs, and in one genus ('' Phryssonotus''), they have 17 pairs of legs, except for one species (''Phryssonotus brevicapensis'') in which they (along with those in one other species, '' Condexenus biramipalpus'') ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyxenus Lagurus
''Polyxenus lagurus'', known as the bristly millipede is a species of millipede Millipedes 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 resu ... found in many areas of Europe and North America.p. 13 It is covered with detachable bristles that have the ability to entangle ants and spiders that attack the animal. References Polyxenida Millipedes of Europe Millipedes of North America Animals described in 1758 Taxa named by Carl Linnaeus {{Myriapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polyxenus (genus)
''Polyxenus'' is a genus of millipede in the order Polyxenida, containing at least 30 valid species as of 2012. Species *'' Polyxenus albus'' Pocock, 1894 *'' Polyxenus anacapensis'' Pierce, 1940 *'' Polyxenus anophthalius'' Ishii & Yin, 2000 *'' Polyxenus buxtoni'' Brollemann, 1921 *'' Polyxenus caudatus'' Menge, 1854 *'' Polyxenus chalcidicus'' Conde & Nguyen Duy-Jacquemin, 1971 *'' Polyxenus chilensis'' Silvestri, 1903 *'' Polyxenus colurus'' Menge, 1854 *'' Polyxenus conformis'' Koch & Berendt, 1854 *'' Polyxenus fasciculatus'' Say, 1821 *'' Polyxenus germanicus'' Verhoeff, 1941 *'' Polyxenus hangzhoensis'' Ishii & Liang, 1990 *'' Polyxenus hawaiiensis'' Silvestri, 1904 *'' Polyxenus koreanus'' Ishii & Choi, 1988 *'' Polyxenus lagurus'' ( Linnaeus, 1758) *'' Polyxenus lapidicola'' Silvestri, 1903 *'' Polyxenus lepagei'' Mello-Leitao, 1925 *'' Polyxenus lophurus'' Menge, 1854 *'' Polyxenus lucidus'' Chalande, 1888 *'' Polyxenus macedonicus'' Verhoeff, 1952 *'' Polyxenus orom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Burmese Amber
Burmese amber, also known as Burmite or Kachin amber, is amber from the Hukawng Valley in northern Myanmar. The amber is dated to around 100 million years ago, during the latest Albian to earliest Cenomanian ages of the mid-Cretaceous period. The amber is of significant palaeontological interest due to the diversity of flora and fauna contained as inclusions, particularly arthropods including insects and arachnids but also birds, lizards, snakes, frogs and fragmentary dinosaur remains. The amber has been known and commercially exploited since the first century AD, and has been known to science since the mid-nineteenth century. Research on the deposit has attracted controversy due to its alleged role in funding internal conflict in Myanmar and hazardous working conditions in the mines where it is collected. Geological context, depositional environment and age The amber is found within the Hukawng Basin, a large Cretaceous-Cenozoic sedimentary basin within northern Myanmar. The s ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Macroxenodes
''Macroxenodes'' is a genus of bristly millipedes in the family Polyxenidae Polyxenidae is a family of millipedes in the order Polyxenida containing approximately 47 species in 19 genera. Adults in all species in this family have 13 pairs of legs. Genera * '' Allographis'' Silvestri 1948 * '' Anopsxenus'' Condé & Jac .... There are at least four described species in ''Macroxenodes''. Species These four species belong to the genus ''Macroxenodes'': * '' Macroxenodes amazonicus'' Ishii, Jacquemin-Nguyen Duy & Condé, 1999 * '' Macroxenodes bartschi'' (Chamberlin, 1922) * '' Macroxenodes meinerti'' (Silvestri, 1898) * '' Macroxenodes poecilus'' (Chamberlin, 1923) References Further reading * * Polyxenida Articles created by Qbugbot {{myriapoda-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cenomanian
The Cenomanian is, in the ICS' geological timescale, the oldest or earliest age of the Late Cretaceous Epoch or the lowest stage of the Upper Cretaceous Series. An age is a unit of geochronology; it is a unit of time; the stage is a unit in the stratigraphic column deposited during the corresponding age. Both age and stage bear the same name. As a unit of geologic time measure, the Cenomanian Age spans the time between 100.5 and 93.9 million years ago (Mya). In the geologic timescale, it is preceded by the Albian and is followed by the Turonian. The Upper Cenomanian starts around at 95 Mya. The Cenomanian is coeval with the Woodbinian of the regional timescale of the Gulf of Mexico and the early part of the Eaglefordian of the regional timescale of the East Coast of the United States. At the end of the Cenomanian, an anoxic event took place, called the Cenomanian-Turonian boundary event or the "Bonarelli event", that is associated with a minor extinction event for marine spec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
