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密林龍屬

密林龙属
化石时期:白堊紀晚期, 70 Ma
密林龍已發現的骨骼部位
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 蜥形纲 Sauropsida
总目: 恐龍總目 Dinosauria
目: 蜥臀目 Saurischia
亚目: 獸腳亞目 Theropoda
科: 阿贝力龙科 Abelisauridae
属: 密林龙属 Pycnonemosaurus
Kellner & Campos, 2002
模式種
尼氏密林龍
Pycnonemosaurus nevesi

Kellner $ Campos, 2002

密林龍屬名:Pycnonemosaurus)是獸腳亞目阿貝力龍科恐龍的一屬,是该科目前已知体型最大的成员,体长超过9米,体重大于3吨,且根据化石生长线的研究,该个体仍处于生长阶段,生存於白堊紀晚期的南美洲

化石狀態非常破碎,包含:五顆不完整的牙齒、右恥骨的末端、七節部分尾椎、右脛骨、以及右腓骨的末端關節。恥骨的柄部小、脛骨峰(Cnemial crest)呈斧狀,顯示牠們屬於阿貝力龍科。這些化石發現於巴西馬托格羅索州的一處砂礫岩地層,位於亞馬遜森林地區,地質年代約7000萬年前,相當於馬斯垂克階。在2002年,亞歷山大·克爾納(Alexander Kellner)將這些化石敘述、命名,模式種P. nevesi。屬名意為「茂密森林蜥蜴」[1]

參考資料

[编辑]
  1. ^ Kellner, A. W. A. & Campos, D. A. 2002. On a theropod dinosaur (Abelisauria) from the continental Cretaceous of Brazil. Arquivos do Museu Nacional Rio de Janeiro, 60, 3, 163-170.

外部連結

[编辑]


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密林龍屬
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