始鼠鲨科（学名：Eoptolamnidae）是鼠鲨目下的一个科。
下属分类
本科包括以下属：[1]
- 始鼠鲨属 Eoptolamna Kriwet, Klug, Canudo & Cuenca Bescós, 2008，始裂鼠鲨属
- 丽棘鲨属 Leptostyrax Williston, 1900
- 原鼠鲨属 Protolamna Cappetta, 1980
参考文献
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