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塔彭龍屬

塔彭龙属
化石时期:二疊紀中期
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 合弓綱 Synapsida
目: 楔齒龍目 Sphenacodontia
科: 楔齿龙科 Sphenacodontidae
属: 塔彭龙属 Tappenosaurus
Olson and Beerbower, 1953
模式種
巨型塔彭龍
Tappenosaurus magnus

Olson and Beerbower, 1953

塔彭龍屬學名Tappenosaurus)是種已滅絕合弓綱動物,是盤龍目楔齒龍科的一屬,化石被發現於美國德州的聖安吉洛組(San Angelo Formation)地層,地質年代相當於二疊紀中期。

在1953年,美國古生物學家Everett C. Olson等人將這三個標本建立為新屬,模式種巨型塔彭龍T. magnus)。屬名是以發現化石的Neil Tappen博士為名;種名意為「巨大的」,意指其巨大體型。Everett C. Olson等人在命名塔彭龍屬時,建立個別的塔彭龍科(Tappenosauridae)以包含此屬[1]

正模標本是個破碎的身體骨骼,包含頭顱骨後段、牙齒與肋骨碎片、第二頸椎、一節背椎、三個神經棘、左右肱骨末端、部份骨盆。第二個標本包含:數節頸椎、一個肋骨、一個肩胛鳥喙骨。第三個標本則只有肋骨。這些骨頭非常大,甚至大於異齒龍最大型化石的相同部位;異齒龍是塔彭龍的近親,具有大型背帆[1]。塔彭龍的身長被估計可達5.5公尺,體型相當於恐頭獸類的最大型物種;恐頭獸類生存於二疊紀的稍晚時期,比盤龍目還要進階[2]

參考資料

  1. ^ 1.0 1.1 Olson, E.C.; and Beerbower, J.R. The San Angelo Formation, Permian of Texas, and its vertebrates. The Journal of Geology. 1953, 61 (5): 389–423. 
  2. ^ Olson, E.C. Parallelism in the evolution of the Permian reptilian faunas of the Old and New Worlds. Fieldiana. 1955, 37 (13): 385–401. 
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塔彭龍屬
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