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来自维基百科,自由的百科全书
轭根鲸(Zygorhiza)是已灭绝的鲸鱼,化石发现于美国和新西兰。
轭根鲸与龙王鲸有关,但却较为短小。牠约有6米长。轭根鲸的鳍可以在肘部活动。牠的后肢并不发达。牠的头颅骨长1米,有强壮的颚骨及牙齿。轭根鲸的颈部有7节脊骨。
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