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Ctenorhachis (Greek for "comb spine") is an extinct genus of the family Sphenacodontidae. Ctenorhachis was related to Dimetrodon, but did not belong to the same subfamily as Dimetrodon and Sphenacodon, being a more basal member of Sphenacodontidae. Ctenorhachis lived in the Early Permian epoch. Two specimens are known that have been found from the Wichita Group outcropping in Baylor and Archer counties, north-central Texas. Only the vertebrae and pelvis are known. Articulated vertebrae from the holotype specimen possess blade like neural spines that are greatly enlarged, although not nearly to the extent that can be seen in more derived sphenacodontids such as Dimetrodon and Secodontosaurus, in which they form a large sail. The pelvis is nearly identical to that of Dimetrodon. As suggested

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rdf:type
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  • Ctenorhachis (en)
  • Ctenorhachis (es)
  • Ctenorhachis (fr)
  • 크테노르하키스 (ko)
  • Ctenorhachis (nl)
  • Ctenorhachis (pt)
  • Ctenorhachis (uk)
  • 櫛棘龍屬 (zh)
rdfs:comment
  • Ctenorhachis es un género extinto de esfenacodóntido, relacionado con Dimetrodon, siendo un miembro basal de la familia Sphenacodontidae. Ctenorhachis vivió durante el Pérmico Inferior. Se conocen dos especímenes procedentes de los condados de Baylor and Archer en Tejas, Estados Unidos. Solo se recuperaron vértebras y la pelvis. Las vértebras articulados del holotipo apófisis espinosas muy elongadas, sin embargo, no alcanzaban la longitud de otros esfenacodóntidos como Dimetrodon y Secodontosaurus, en los cual formaban una gran vela. La pelvis es casi idéntica a la de Dimetrodon. Como se sugirió en la descripción original del género, Ctenorhachis podría representar un dimorfo sexual de espinas cortas, sin embargo creen que esto es improbable.​ (es)
  • Ctenorhachis (« l'épine de peigne » en grec) est un genre éteint de synapsides de la famille des Sphenacodontidae. Ses fossiles ont été découverts dans l'Artinskien (Permien inférieur) du Texas. Ctenorhachis a d'abord été relié à Dimetrodon, mais il n'appartient pas à la même sous-famille que Dimetrodon et Sphenacodon, étant un membre plus basal de Sphenacodontidae. (fr)
  • 크테노르하키스(학명:Ctenohachis jacksoni)는 반룡목 스페나코돈과에 속하는 도마뱀이다. 지금은 멸종된 종으로서 전체적인 몸길이가 2~3m인 거대한 도마뱀에 속한다. (ko)
  • Ctenorhachis is een uitgestorven geslacht van Synapsida behorend tot de Sphenacodontidae. Er is slechts een soort benoemd: Ctenorhachis jacksoni, wiens fossielen zijn gevonden in Texas in lagen uit het Vroeg-Perm. Alleen een bekken en een paar wervels zijn gevonden, en deze werden vervolgens door Hook en Hotton in 1991 benoemd. Ctenorhachis was een gevaarlijke carnivoor die leefde in de wouden en rotslandschappen van die tijd. (nl)
  • 櫛棘龍屬(學名:Ctenorhachis)意為「櫛狀棘」,是種已滅絕合弓綱動物,屬於盤龍目楔齒龍科。櫛棘龍是異齒龍的近親,但較為原始,而異齒龍、楔齒龍屬於較為進階的楔齒龍亞科(Sphenacodontinae)。 櫛棘龍生存於二疊紀早期,目前已經發現兩個標本,包含脊椎、骨盆,發現於美國德州貝勒郡與阿徹郡。正模標本是一些關節相連的脊椎,上有多條神經棘,但沒有異齒龍、切齒龍的神經棘長。櫛棘龍與異齒龍的骨盆非常類似。早期研究提出,櫛棘龍的短神經棘,可能代表兩性異形。但後來該研究人員反對這個理論。 (zh)
  • Ctenorhachis (Greek for "comb spine") is an extinct genus of the family Sphenacodontidae. Ctenorhachis was related to Dimetrodon, but did not belong to the same subfamily as Dimetrodon and Sphenacodon, being a more basal member of Sphenacodontidae. Ctenorhachis lived in the Early Permian epoch. Two specimens are known that have been found from the Wichita Group outcropping in Baylor and Archer counties, north-central Texas. Only the vertebrae and pelvis are known. Articulated vertebrae from the holotype specimen possess blade like neural spines that are greatly enlarged, although not nearly to the extent that can be seen in more derived sphenacodontids such as Dimetrodon and Secodontosaurus, in which they form a large sail. The pelvis is nearly identical to that of Dimetrodon. As suggested (en)
  • Ctenorhachis (grego para "pente espinha") é um gênero extinto da família Sphenacodontidae. Ctenorhachis estava relacionada com Dimetrodonte , mas não pertencem à mesma subfamília como Dimetrodonte e Sphenacodon, sendo um mais basal membro da Sphenacodontidae. Ctenorhachis viveu no início Permiano época. Dois espécimes são conhecidos que foram encontrados do Wichita Grupo afloramento em Baylor e Archer municípios, Texas norte-central. Somente o vértebras e pélvis são conhecidos. Vértebras articulada a partir do espécime holótipo possuem lâmina como espinhas neurais que são grandemente aumentada, embora não quase na medida em que pode ser visto em mais sphenacodontds derivados tais como dimetrodonte e Secodontosaurus , em que eles formam uma grande vela. A pélvis é quase idêntico ao do Dimet (pt)
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  • Ctenorhachis (en)
name
  • Ctenorhachis (en)
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  • http://commons.wikimedia.org/wiki/Special:FilePath/Ctenorhachis.jpg
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binomial
  • Ctenorhachis jacksoni (en)
binomial authority
  • Hook & Hotton, 1991 (en)
classis
  • Synapsida (en)
familia
  • Sphenacodontidae (en)
fossil range
  • Early Permian, (en)
genus
  • (Hook & Hotton, 1991) (en)
  • Ctenorhachis (en)
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