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Yohoia is an extinct genus of megacheiran arthropod from the Cambrian period that has been found as fossils in the Burgess Shale formation of British Columbia, Canada. It has been placed among the arachnomorpha, a group of arthropods that includes the chelicerates and possibly the trilobites. Fossils range in size from 7 to 23 mm. 711 specimens of Yohoia are known from the Greater Phyllopod bed, where they comprise 1.35% of the community.

AttributesValues
rdf:type
rdfs:label
  • Yohoia tenuis (ca)
  • Yohoia (de)
  • Yohoia tenuis (es)
  • Yohoia (fr)
  • Yohoia tenuis (it)
  • ヨホイア (ja)
  • Yohoia (sv)
  • Yohoia (en)
rdfs:comment
  • Yohoia tenuis és una espècie de petit artròpode del Cambrià les restes fòssils del qual s'han trobat a la formació de Burgess Shale a la Colúmbia Britànica, Canadà. S'ha situat entre els aracnomorfs, un grup d'artròpodes que inclou els quelicerats i els trilòbits. Mesuraven entre 7 i 23 mm. (ca)
  • Yohoia ist eine ausgestorbene Tiergattung aus dem frühen Kambrium. Fossilien seines bisher einzigen bekannten Vertreters, Yohoia tenius, wurden im Burgess-Schiefer im namensgebenden Yoho-Nationalpark der kanadischen Provinz British Columbia entdeckt und 1912 durch den US-amerikanischen Paläontologen Charles Walcott erstmals wissenschaftlich beschrieben. Auf Grund der mittlerweile über 700 gefundenen Fossilien von Yohoia tenius gilt die Gattung als eine der häufigeren Vertreter der Biota des Burgess-Schiefers. Auf Grund der anatomischen Merkmale wird Yohoia als ein früher Abkömmling der Spinnentier- und Krebstier-Linie vermutet. (de)
  • Yohoia tenuis es la única especie del género Yohoia, era un pequeño artrópodo que vivió en el Cámbrico, sus restos fósiles fueron encontrados en la formación de esquisto de Burgess, en Columbia Británica, Canadá. Se ha situado entre los , un grupo de artrópodos que incluye los quelicerados y posiblemente a los trilobites. Medían entre 7 y 23 mm. Se conocen 711 ejemplares de Yohoia en el Gran Yacimiento de Filópodos, donde constituyen el 1,35% de la comunidad.​ (es)
  • Yohoia est un genre éteint de tout petits animaux du Cambrien moyen (il y a environ 505 Ma (millions d'années), dont on a retrouvé les fossiles dans la formation géologique des schistes de Burgess de Colombie-Britannique, au Canada. Il a été placé parmi les , un groupe d'arthropodes qui inclut les chélicérates et les trilobites. Une seule espèce est rattachée au genre : Yohoia tenuis, décrite par Charles Doolittle Walcott en 1912. (fr)
  • ヨホイア (Yohoia) は、約5億年前のカンブリア紀に生息したメガケイラ類の化石節足動物の一属。広げた背甲と能動的な胴部をもつ、北アメリカから発見された種類が知られている。レアンコイリアと共に、最初に記載されたメガケイラ類として有名な属である。 (ja)
  • La yohoia (Yohoia tenuis) è un artropode marino estinto, vissuto tra il Cambriano inferiore e il Cambriano medio (tra 520 e 505 milioni di anni fa). I suoi resti sono stati rinvenuti nel famosi giacimenti di Maotianshan in Cina e di Burgess Shales in Canada. (it)
  • Yohoia är en djurgrupp som levde under kambrium. Yohoia påminner om en blandning av en räka och hummer till utseendet. Det finns en liknande livsform med namnet Parapeytoia som har en bredare kropp och utskjutande delar längs med kroppens yttre sidor. (sv)
  • Yohoia is an extinct genus of megacheiran arthropod from the Cambrian period that has been found as fossils in the Burgess Shale formation of British Columbia, Canada. It has been placed among the arachnomorpha, a group of arthropods that includes the chelicerates and possibly the trilobites. Fossils range in size from 7 to 23 mm. 711 specimens of Yohoia are known from the Greater Phyllopod bed, where they comprise 1.35% of the community. (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/20191020_Yohoia_tenuis.png
  • http://commons.wikimedia.org/wiki/Special:FilePath/20210701_Yohoia_tenuis_great_appendage_mobility.gif
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dbp:wikiPageUsesTemplate
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authority
  • Walcott, 1912 (en)
display parents
genus
  • Yohoia (en)
grandparent authority
  • Henriksen, 1928 (en)
image
parent authority
  • Walcott, 1912 (en)
species
  • tenuis (en)
has abstract
  • Yohoia tenuis és una espècie de petit artròpode del Cambrià les restes fòssils del qual s'han trobat a la formació de Burgess Shale a la Colúmbia Britànica, Canadà. S'ha situat entre els aracnomorfs, un grup d'artròpodes que inclou els quelicerats i els trilòbits. Mesuraven entre 7 i 23 mm. (ca)
  • Yohoia ist eine ausgestorbene Tiergattung aus dem frühen Kambrium. Fossilien seines bisher einzigen bekannten Vertreters, Yohoia tenius, wurden im Burgess-Schiefer im namensgebenden Yoho-Nationalpark der kanadischen Provinz British Columbia entdeckt und 1912 durch den US-amerikanischen Paläontologen Charles Walcott erstmals wissenschaftlich beschrieben. Auf Grund der mittlerweile über 700 gefundenen Fossilien von Yohoia tenius gilt die Gattung als eine der häufigeren Vertreter der Biota des Burgess-Schiefers. Auf Grund der anatomischen Merkmale wird Yohoia als ein früher Abkömmling der Spinnentier- und Krebstier-Linie vermutet. (de)
  • Yohoia tenuis es la única especie del género Yohoia, era un pequeño artrópodo que vivió en el Cámbrico, sus restos fósiles fueron encontrados en la formación de esquisto de Burgess, en Columbia Británica, Canadá. Se ha situado entre los , un grupo de artrópodos que incluye los quelicerados y posiblemente a los trilobites. Medían entre 7 y 23 mm. Se conocen 711 ejemplares de Yohoia en el Gran Yacimiento de Filópodos, donde constituyen el 1,35% de la comunidad.​ (es)
  • Yohoia est un genre éteint de tout petits animaux du Cambrien moyen (il y a environ 505 Ma (millions d'années), dont on a retrouvé les fossiles dans la formation géologique des schistes de Burgess de Colombie-Britannique, au Canada. Il a été placé parmi les , un groupe d'arthropodes qui inclut les chélicérates et les trilobites. Une seule espèce est rattachée au genre : Yohoia tenuis, décrite par Charles Doolittle Walcott en 1912. (fr)
  • Yohoia is an extinct genus of megacheiran arthropod from the Cambrian period that has been found as fossils in the Burgess Shale formation of British Columbia, Canada. It has been placed among the arachnomorpha, a group of arthropods that includes the chelicerates and possibly the trilobites. Fossils range in size from 7 to 23 mm. 711 specimens of Yohoia are known from the Greater Phyllopod bed, where they comprise 1.35% of the community. Yohoia is one of the "great appendage" arthropods. All taxa have a single pair of large pre-oral jointed limbs with branched spiny ends for grasping, impaling, or filtering food items. "Great appendage" arthropods have been seen as a polyphyletic group where the appendage has independently evolved, or as a Class Megacheira including Yohoia (with Leanchoilia, Alalcomenaeus, Oestokerkus, Fortiforceps, Jianfengia, Yawunik) defined as euarthropods, plus the radiodonts, defined as a sister group to arthropods. Yohoia-like genera are small and have biramous limbs with a walking segment, while radiodonts are larger animals without limbs except for the great appendage. (Although biramous limbs have been described in the Devonian radiodont Schinderhannes, this interpretation is highly questioned and it is more likely to be bands of gill lamellae instead.) Specimens of Yohoia have a head shield which is followed by 13 trunk tergites, or plates. On both sides, the bottom side of the first 10 of these ended in backward-pointing, triangular points or projections. The last three plates were complete tubes, circling the entire trunk. At the end of the trunk was a paddle-like tail. There were also a pair of large extensions at the front of the head shield. They had a pronounced "elbow" and ended in four long spines, looking rather like fingers. There were three appendages on the bottom of the head shield on each side, and these are assumed to have supported the creature on the sandy or silty sea bottom. There were also single appendages hanging down under the body plates which were flap-like and fringed with setae, probably used for swimming and respiration. Specimens also show some bulbous formations at the front of the head shield that may have served as eyes. Yohoia is assumed to have been a mainly benthic (bottom-dwelling) creature that swam just above the muddy ocean floor, using its appendages to scavenge or capture prey. (en)
  • ヨホイア (Yohoia) は、約5億年前のカンブリア紀に生息したメガケイラ類の化石節足動物の一属。広げた背甲と能動的な胴部をもつ、北アメリカから発見された種類が知られている。レアンコイリアと共に、最初に記載されたメガケイラ類として有名な属である。 (ja)
  • La yohoia (Yohoia tenuis) è un artropode marino estinto, vissuto tra il Cambriano inferiore e il Cambriano medio (tra 520 e 505 milioni di anni fa). I suoi resti sono stati rinvenuti nel famosi giacimenti di Maotianshan in Cina e di Burgess Shales in Canada. (it)
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