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Lessemsauridae is a clade of early sauropodiform dinosaurs that lived in the Triassic and Jurassic of Argentina, South Africa and possibly Lesotho. A phylogenetic analysis performed by Apaldetti and colleagues in 2018 recovered a new clade of sauropodiforms uniting Lessemsaurus, Antetonitrus, and Ingentia which they named Lessemsauridae. It is a node-based taxon, defined as all descendants of the most recent common ancestor of Lessemsaurus sauropoides and Antetonitrus ingenipes. Depending on the definition of Sauropoda, Lessemsauridae is either one of the most basal sauropod taxa, or a sister taxon of Sauropoda. An additional member of the clade was named later in 2018, Ledumahadi. A 2021 study by Pol and colleagues also assigned the genera Kholumolumo and Meroktenos to the group.

AttributesValues
rdfs:label
  • Lessemsauridae (cs)
  • Lessemsauridae (fr)
  • Lessemsauridae (it)
  • Lessemsauridae (en)
  • Lessemsauridae (nl)
  • 莱森龙科 (zh)
rdfs:comment
  • Lessemsauridae ("lessemsauridi") byla čeleď starobylých a vývojově primitivních sauropodních dinosaurů. Zástupci této čeledi žili v období pozdního triasu až rané jury (věk pozdní nor až , asi před 215 až 190 miliony let) na území dnešní Argentiny a Jihoafrické republiky. V době jejich existence byla ještě Jižní Amerika a Afrika spojeny v jeden superkontinent (Gondwanu). (cs)
  • Les Lessemsauridae constituent un clade de dinosaures sauropodes basaux qui ont vécu au cours du Trias et du Jurassique en Argentine et en Afrique du Sud. Ce clade a été défini en 2018 par Cecilia Apaldetti et ses collègues. (fr)
  • 莱森龙科(学名:Lessemsauridae)是早期蜥脚类恐龙的一个演化支,分布于晚三叠世至早侏罗世的阿根廷和南非。Apaldetti和其同僚2018年进行的系统发育分析发现了蜥脚形类中一个新的演化支,由莱森龙、雷前龙和近期命名的巨龙组成,他们将其命名为莱森龙科。莱森龙科具有高度气腔化的颈椎和背椎,颈椎前后距离短但很高,而且非常强健,肩胛骨远端异常扩张,手臂直立。根据蜥脚类的定义,其演化支要么是最古老的蜥脚类分类单元,要么是其姐妹群。该演化支的另一成员在2018年晚些时候被命名为巨雷龙。该科被认为是一类非常大的四足动物,它们独立于其他巨型蜥脚类而达到了巨大的体型(高达12公吨)。Müller2019年进行的系统发育分析结果如下所示: (zh)
  • Lessemsauridae is a clade of early sauropodiform dinosaurs that lived in the Triassic and Jurassic of Argentina, South Africa and possibly Lesotho. A phylogenetic analysis performed by Apaldetti and colleagues in 2018 recovered a new clade of sauropodiforms uniting Lessemsaurus, Antetonitrus, and Ingentia which they named Lessemsauridae. It is a node-based taxon, defined as all descendants of the most recent common ancestor of Lessemsaurus sauropoides and Antetonitrus ingenipes. Depending on the definition of Sauropoda, Lessemsauridae is either one of the most basal sauropod taxa, or a sister taxon of Sauropoda. An additional member of the clade was named later in 2018, Ledumahadi. A 2021 study by Pol and colleagues also assigned the genera Kholumolumo and Meroktenos to the group. (en)
  • Lessemsauridae (il cui nome significa "sauri di Don Lessem") è una famiglia estinta di dinosauri sauropodi primitivi vissuti nel Triassico superiore-Giurassico inferiore, circa 215-190 milioni di anni fa (Norico-Pliensbachiano), in Argentina e in Sudafrica. Un'analisi filogenetica eseguita da Apaldetti et al. descrisse questa nuova famiglia che conteneva Ingentia, Lessemsaurus e Antetonitrus, che chiamò Lessemsauridae. I lessemsauridi avevano vertebre cervicali e dorsali altamente pneumatiche, vertebre cervicali antero-posteriori molto corte ma alte, vertebre cervicali robuste, una lama distale della scapola estesa e braccia verticali. (it)
  • De Lessemsauridae zijn een groep plantenetende dinosauriërs, behorend tot de Sauropodomorpha. In 2018 merkten Cecilia Apaldetti, Ricardo Nestor Martínez, Ignacio Alejandro Cerda, Diego Pol en Oscar Alcober dat Ingentia een aparte tak vormde met Lessemsaurus en Antetonitrus. Ze benoemden een klade Lessemsauridae. De klade werd gedefinieerd als de groep bestaande uit de laatste gemeenschappelijke voorouder van Lessemsaurus sauropoidesBonaparte, 1999 en Antetonitrus ingenipes Yates and Kitching, 2003 en al diens afstammelingen. (nl)
name
  • Lessemsaurids (en)
foaf:depiction
  • http://commons.wikimedia.org/wiki/Special:FilePath/Lessemsaurus_Senckenberg.jpg
dcterms:subject
Wikipage page ID
Wikipage revision ID
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dbp:wikiPageUsesTemplate
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authority
  • Apaldetti et al., 2018 (en)
fossil range
  • Late Triassic-Early Jurassic, (en)
image caption
  • Skeletal mount of Lessemsaurus (en)
subdivision
  • * Antetonitrus * Ingentia * Kholumolumo? * Ledumahadi * Lessemsaurus * Meroktenos? (en)
subdivision ranks
taxon
  • Lessemsauridae (en)
has abstract
  • Lessemsauridae ("lessemsauridi") byla čeleď starobylých a vývojově primitivních sauropodních dinosaurů. Zástupci této čeledi žili v období pozdního triasu až rané jury (věk pozdní nor až , asi před 215 až 190 miliony let) na území dnešní Argentiny a Jihoafrické republiky. V době jejich existence byla ještě Jižní Amerika a Afrika spojeny v jeden superkontinent (Gondwanu). (cs)
  • Lessemsauridae is a clade of early sauropodiform dinosaurs that lived in the Triassic and Jurassic of Argentina, South Africa and possibly Lesotho. A phylogenetic analysis performed by Apaldetti and colleagues in 2018 recovered a new clade of sauropodiforms uniting Lessemsaurus, Antetonitrus, and Ingentia which they named Lessemsauridae. It is a node-based taxon, defined as all descendants of the most recent common ancestor of Lessemsaurus sauropoides and Antetonitrus ingenipes. Depending on the definition of Sauropoda, Lessemsauridae is either one of the most basal sauropod taxa, or a sister taxon of Sauropoda. An additional member of the clade was named later in 2018, Ledumahadi. A 2021 study by Pol and colleagues also assigned the genera Kholumolumo and Meroktenos to the group. Lessemsaurids are recognised as very large quadrupeds that achieved giant sizes (up to 12 metric tons) independently of other giant sauropodomorphs. They had highly pneumatic cervical and dorsal vertebrae, very antero-posteriorly short but tall cervical vertebrae, robust cervicals, a very expanded distal scapula blade, and upright arms. (en)
  • Les Lessemsauridae constituent un clade de dinosaures sauropodes basaux qui ont vécu au cours du Trias et du Jurassique en Argentine et en Afrique du Sud. Ce clade a été défini en 2018 par Cecilia Apaldetti et ses collègues. (fr)
  • Lessemsauridae (il cui nome significa "sauri di Don Lessem") è una famiglia estinta di dinosauri sauropodi primitivi vissuti nel Triassico superiore-Giurassico inferiore, circa 215-190 milioni di anni fa (Norico-Pliensbachiano), in Argentina e in Sudafrica. Un'analisi filogenetica eseguita da Apaldetti et al. descrisse questa nuova famiglia che conteneva Ingentia, Lessemsaurus e Antetonitrus, che chiamò Lessemsauridae. I lessemsauridi avevano vertebre cervicali e dorsali altamente pneumatiche, vertebre cervicali antero-posteriori molto corte ma alte, vertebre cervicali robuste, una lama distale della scapola estesa e braccia verticali. A seconda della definizione di Sauropoda, il clade è il più antico taxon sauropode, o il taxon sorella del clade. L'analisi filogenetica è mostrata di seguito: (it)
  • De Lessemsauridae zijn een groep plantenetende dinosauriërs, behorend tot de Sauropodomorpha. In 2018 merkten Cecilia Apaldetti, Ricardo Nestor Martínez, Ignacio Alejandro Cerda, Diego Pol en Oscar Alcober dat Ingentia een aparte tak vormde met Lessemsaurus en Antetonitrus. Ze benoemden een klade Lessemsauridae. De klade werd gedefinieerd als de groep bestaande uit de laatste gemeenschappelijke voorouder van Lessemsaurus sauropoidesBonaparte, 1999 en Antetonitrus ingenipes Yates and Kitching, 2003 en al diens afstammelingen. De klade toonde twee synapomorfieën, gedeelde afgeleide eigenschappen. Het schouderblad is robuust met beide uiteinden gelijkelijk verbreed. De botgroei wordt gekenmerkt door dikke zones dooraderd fibrolamellair bot, afgezet in een cyclisch groeipatroon. Daarnaast was er unieke combinatie van op zich niet voor de groep unieke kenmerken. De achterste ruggenwervels hebben een spleetvormig ruggenmergkanaal. Bij de voorste ruggenwervels zijn de doornuitsteeksels bovenaan overdwars verbreed. Het eerste middenhandsbeen is op het dunste punt ruim tweemaal dikker dan het dunste punt van de schacht van het tweede middenhandsbeen. De groep bestaat uit grote vormen van acht tot tien meter lengte, uit het late Trias. Ze vertegenwoordigen onder de landdieren de grootste planteneters die tot dan toe geëvolueerd waren. Hun armen zijn lang en waren in staat het lichaam als voorpoten te ondersteunen hoewel ze nog niet in staat waren tot een efficiënte voorwaartse afzet. Afhankelijk van de definitie zijn de Lessemsauridae de meest basale groep of de zustergroep van de Sauropoda. (nl)
  • 莱森龙科(学名:Lessemsauridae)是早期蜥脚类恐龙的一个演化支,分布于晚三叠世至早侏罗世的阿根廷和南非。Apaldetti和其同僚2018年进行的系统发育分析发现了蜥脚形类中一个新的演化支,由莱森龙、雷前龙和近期命名的巨龙组成,他们将其命名为莱森龙科。莱森龙科具有高度气腔化的颈椎和背椎,颈椎前后距离短但很高,而且非常强健,肩胛骨远端异常扩张,手臂直立。根据蜥脚类的定义,其演化支要么是最古老的蜥脚类分类单元,要么是其姐妹群。该演化支的另一成员在2018年晚些时候被命名为巨雷龙。该科被认为是一类非常大的四足动物,它们独立于其他巨型蜥脚类而达到了巨大的体型(高达12公吨)。Müller2019年进行的系统发育分析结果如下所示: (zh)
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