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巨海豚属

克氏巨海豚
化石时期:晚渐新世 Late Oligocene
巨海豚与剑吻古豚
科学分类 编辑
界: 动物界 Animalia
门: 脊索动物门 Chordata
纲: 哺乳纲 Mammalia
目: 偶蹄目 Artiodactyla
下目: 鲸下目 Cetacea
科: 剑吻古豚科 Eurhinodelphinidae
属: 巨海豚属 Macrodelphinus
Wilson 1935
种:
克氏巨海豚 M. kelloggi
二名法
Macrodelphinus kelloggi
Wilson 1935

巨海豚(学名Macrodelphinus)为已经灭绝齿鲸,发现于渐新世晚期(恰特期)的美国加利福尼亚州的海洋沉积层。目前对巨海豚的研究来自于晚渐新世时期美国南加利福尼亚州克恩县朱威特砂质地层组英语Jewett Sand Formation出土的一具破碎颅骨[1]

生态学

巨海豚为体型大小类似于现存虎鲸的齿鲸,与剑吻古豚为近亲,同样具有类似剑旗鱼的剑状上吻。根据其体型与牙齿大小来判断,巨海豚可能为当时的顶级掠食者

参考文献

  1. ^ L. E. Wilson. 1935. Miocene marine mammals from the Bakersfield region, California. The Peabody Museum of Natural History Bulletin 4:1-143.
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巨海豚属
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