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石千峰龍屬

石千峰龍屬
化石时期:254–252.3 Ma
二疊紀晚期
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 爬行綱 Reptilia
演化支 副爬行動物 Parareptilia
目: 前棱蜥形目 Procolophonomorpha
科: 锯齿龙科 Pareiasauridae
属: 石千峰龙属 Shihtienfenia
Young & Yeh, 1963[1]
模式種
二疊石千峰龍
Shihtienfenia permica

Young & Yeh, 1963

石千峰龍屬學名Shihtienfenia)是種已滅絕副爬行動物,是鋸齒龍科的一屬,生存於二疊紀晚期的中國[2]

发现

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化石发现于中国山西省忻州市西北部的保德县,地处鄂尔多斯盆地东缘,此前曾发现过脊椎、下頜、四肢骨頭化石,2019年首次发现完整头骨。[3]

體徵

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头骨长约40厘米,膜质骨突起形成长而尖的角,面颊上装饰有显著的锥型角,上颞骨(Supratemporal)角从头骨一角向侧后方伸出,副基蝶骨细长且腹面中间有凹沟,案骨加大并在中间相互接触,使后顶骨不参与形成头骨边缘,上颌齿齿冠扇形具有9-11个齿尖,下颌齿有中脊具17个齿尖。[3]

石千峰龍具有六節薦椎,而非其他鋸齒龍類的四節薦椎,這可能導因於石千峰龍生存於不同於其他鋸齒龍類的環境[2]

分類

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在1963年,杨钟健、叶祥奎命名這個物種。在1997年,石千峰龍被歸類於鋸齒龍科。

石千峰龍可能屬於鋸齒龍科的不同亞科。Oskar Kuhn在他的專題論文中,根據腸骨上緣平坦,將石千峰龍歸類於鋸齒龍科的鋸齒龍亞科(Pareiasaurinae)。

2019年发现完整头骨后经鉴定与埃尔金龙关系较近。[3]

參考資料

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  1. ^ Shihtienfenia. The Paleobiology Database. [February 2012]. 
  2. ^ 2.0 2.1 Pareiasauridae 互联网档案馆存檔,存档日期2007-03-13.
  3. ^ 3.0 3.1 3.2 王, 军有; 伊, 剑; 刘, 俊. 中国第一个完整的锯齿龙头骨. 古生物学报. 2019, 58 (2) [2023-06-23]. ISSN 0001-6616. doi:10.19800/j.cnki.aps.2019.02.007. (原始内容存档于2023-06-23). 
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石千峰龍屬
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