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- Elrathia is a genus of trilobite belonging to Ptychopariacea known from the mid-Cambrian of Laurentia (North America). E. kingii is one of the most common trilobite fossils in the USA locally found in extremely high concentrations within the Wheeler Formation in the U.S. state of Utah.E. kingii has been considered the most recognizable trilobite. Commercial quarries extract E. kingii in prolific numbers, with just one commercial collector estimating 1.5 million specimens extracted in a 20-year career. 1950 specimens of Elrathia are known from the Greater Phyllopod bed, where they comprise 3.7% of the community. "...trilobite occupied the exaerobic zone, at the boundary of anoxic and dysoxic bottom waters. E. kingii consistently occur in settings below the oxygen levels required by other contemporaneous epifaunal and infaunal benthic biota and may have derived energy from a food web that existed independently of phototrophic primary productivity. Although other fossil organisms are known to have preferred such environments, E. kingii is the earliest-known inhabitant of them, extending the documented range of the exaerobic ecological strategy into the Cambrian Period." — Gaines & Droser, 2003, p941 (en)
- Elrathia ist eine Gattung von Trilobiten aus der Ordnung . Fossilfunde stammen aus dem „Mittleren“ Kambrium (Miaolingium) von Laurentia (Nordamerika inklusive Grönland). (de)
- L'elratia (gen. Elrathia) è un artropode estinto appartenente ai trilobiti. Visse nel Cambriano medio (circa 505 milioni di anni fa) e i suoi resti fossilizzati sono stati ritrovati esclusivamente in Nordamerica. (it)
- Elrathia – rodzaj stawonogów z wymarłej gromady trylobitów, z rzędu . Żył w okresie . (pl)
- Elrathia is een uitgestorven geslacht van trilobieten, dat leefde in het Midden-Cambrium. De omstandigheden waarin ze worden gevonden, in zeer hoge dichtheden als enige trilobietensoort in versteende pyrietrijke modder, maakt dat wetenschappers aannemen dat ze zijn aangepast aan zeer zuurstofarme milieus waar ze geen concurrentie hadden van andere soorten. Mogelijk leefden ze in symbiose met zwavelbacteriën. Een van de soorten E. kingi, is waarschijnlijk de meest gevonden trilobiet. (nl)
- 愛爾納蟲（學名：Elrathia），又名艾雷斯蟲、厄拉夏蟲，是生存於寒武紀海洋中的一屬三葉蟲，生活在大陸棚海底。這類三葉蟲的頭比胸要小。眉間很小呈花盆狀，小眼睛和短小的三角形頰部棘刺長在中心部位。胸部分為13節，有條窄小的中軸和寬闊的側板，最後是短小多刺的末梢。尾部大小中等，寬是長的兩倍，中軸延伸到尾部。 截至目前為止，該屬與（Elrathina）的科級分類仍有爭議，目前相信應同屬。 (zh)
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- Elrathia ist eine Gattung von Trilobiten aus der Ordnung . Fossilfunde stammen aus dem „Mittleren“ Kambrium (Miaolingium) von Laurentia (Nordamerika inklusive Grönland). (de)
- L'elratia (gen. Elrathia) è un artropode estinto appartenente ai trilobiti. Visse nel Cambriano medio (circa 505 milioni di anni fa) e i suoi resti fossilizzati sono stati ritrovati esclusivamente in Nordamerica. (it)
- Elrathia – rodzaj stawonogów z wymarłej gromady trylobitów, z rzędu . Żył w okresie . (pl)
- Elrathia is een uitgestorven geslacht van trilobieten, dat leefde in het Midden-Cambrium. De omstandigheden waarin ze worden gevonden, in zeer hoge dichtheden als enige trilobietensoort in versteende pyrietrijke modder, maakt dat wetenschappers aannemen dat ze zijn aangepast aan zeer zuurstofarme milieus waar ze geen concurrentie hadden van andere soorten. Mogelijk leefden ze in symbiose met zwavelbacteriën. Een van de soorten E. kingi, is waarschijnlijk de meest gevonden trilobiet. (nl)
- 愛爾納蟲（學名：Elrathia），又名艾雷斯蟲、厄拉夏蟲，是生存於寒武紀海洋中的一屬三葉蟲，生活在大陸棚海底。這類三葉蟲的頭比胸要小。眉間很小呈花盆狀，小眼睛和短小的三角形頰部棘刺長在中心部位。胸部分為13節，有條窄小的中軸和寬闊的側板，最後是短小多刺的末梢。尾部大小中等，寬是長的兩倍，中軸延伸到尾部。 截至目前為止，該屬與（Elrathina）的科級分類仍有爭議，目前相信應同屬。 (zh)
- Elrathia is a genus of trilobite belonging to Ptychopariacea known from the mid-Cambrian of Laurentia (North America). E. kingii is one of the most common trilobite fossils in the USA locally found in extremely high concentrations within the Wheeler Formation in the U.S. state of Utah.E. kingii has been considered the most recognizable trilobite. Commercial quarries extract E. kingii in prolific numbers, with just one commercial collector estimating 1.5 million specimens extracted in a 20-year career. 1950 specimens of Elrathia are known from the Greater Phyllopod bed, where they comprise 3.7% of the community. (en)
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- Elrathia (de)
- Elrathia (en)
- Elrathia (it)
- Elrathia (nl)
- Elrathia (pl)
- 愛爾納蟲 (zh)
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