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雷家坝组一名系由西北地质科学研究所于1974年创名,标准地点在甘肃礼县以南雷家坝附近,以沿西汉水的朱家坝—江口剖面为代表,其沿革是依据古生物特征及岩石组合将西汉水群进一步划分出上部榆树坪组和下部雷家坝组。 1980年,甘肃区域地质调查队等在编写《甘肃泥盆系》时指出,“根据腕足类及珊瑚化石来看,雷家坝组生物群属中泥盆世无疑,腕足类最低层位出现了Uncinulus parallepepidus等艾菲尔阶下部的重要分子,但顶部尚未出现鹗头贝,时代应早于东岗岭期而与应棠期对应。以往,在岷县幅的区测报告内,曾列述的在良恭镇以北采获。Acrospiriffer tonkjnensis,A.
A member of the Leijiaba Formation was founded by the Northwestern Institute of Geological Sciences in 1974, and its standard location is near Leijiaba, south of Li County, Gansu Province, and is represented by the section of Zhujiaba - Jiangkou along the Western Han River. Its evolution is based on Palaeontological features and rock assemblages further divide the West Han River water group into Upper Yushuping Formation and Lower Lejiaba Formation. In 1980, when Gansu Regional Geological Survey Team compiled Gansu Devonian Series, "According to the brachiopods and coral fossils, there is no doubt that the biota of the Leijiaba Formation belongs to the Middle Devonian, and the lowest level of the brachiopods appeared Uncinulus parallepepidus, and other important members of the lower Eifel order, but the top is not yet the first scallop, the era should be earlier than the East Ridge and Ying should be corresponding period.In the past, Minxian amplitude zone test report, Was harvested north of Lianggong town. Acrospiriffer tonkjnensis, A.