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双叶龙属

双叶龙属
化石时期:桑托阶
位于日本国立科学博物馆的双叶铃木龙的化石
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 爬行纲 Reptilia
目: 蛇颈龙目 Plesiosauria
科: 薄板龙科 Elasmosauridae
演化支 真薄板龙类 Euelasmosaurida
演化支 威德尔泳龙类 Weddellonectia
属: 双叶龙属 Futabasaurus
Sato, Hasegawa & Manabe, 2006
模式种
铃木双叶龙
Futabasaurus suzukii

Sato, Hasegawa & Manabe, 2006

双叶龙属学名Futabasaurus)为蛇颈龙目的一个属,化石发现于日本福岛县的双叶层群玉山层,年代属于白垩纪晚期的桑托阶,并被归类于薄板龙科

铃木双叶龙的骨架模型

化石在2006年被正式命名新属,模式种铃木双叶龙F. suzukii),日本媒体称为双叶铃木龙双葉鈴木竜)。属名是指化石所属的双叶层,种名则是以发现者铃木直为名。双叶龙是是在日本发现的第一个蛇颈龙类,身长约7米,体重估计3~4公吨。在模式标本的许多化石,有被鲨鱼咬过的齿痕[1]

双叶龙的鼻孔、眼窝间的距离长。间锁骨、锁骨之间愈合,两者前缘弯曲。前肢上臂相当长。股骨修长,有明显的肌肉附着痕迹。

另一种兽脚亚目恐龙也名为“Futabasaurus”,且都是生存于白垩纪晚期的日本。然而,该恐龙还没有被正式的命名,是一个无资格名称

哆啦A梦系列电影《大雄的恐龙》以及《大雄的恐龙2006》中的哔之助,指的就是铃木双叶龙。

参考资料

[编辑]
  1. ^ Sato, Tamaki; Hasegawa, Yoshikazu; and Manabe, Makoto. A new elasmosaurid plesiosaur from the Upper Cretaceous of Fukushima, Japan. Palaeontology. 2006, 49 (3): 467–484. doi:10.1111/j.1475-4983.2006.00554.x. 
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双叶龙属
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