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平额牛（学名Bos planifrons）是史前的一种牛。牠们在印度及巴基斯坦的西瓦利克山脉生活。牠们有可能是印度原牛的祖先。其模式标本只有一个头颅骨。
- Zong, G. A record of Bos primigenius from the Quaternary of the Aba Tibetan Autonomous Region (PDF). Vertebrata PalAsiatica. 1984, XXII (3): 239–45 [2011-01-07]. （原始内容 (PDF)存档于2007-09-27）.
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