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本文记叙了淮北煤田太原组灰岩中的蜓类15属,62种及亚种,并建立一个蜓带Sphaerosch wagerina,二个亚带:1.Quasifusulina gracilis-Boultonia millsi亚带;2.Sphaeroschwagerina subrotunda亚带。
In this paper, 15 genera, 62 species, and subspecies of dragonflies from the Taiyuan Formation limestone in Huaibei coalfield are described and a Sprague-Dawley wagerina is established with two sub-bands: 1. Quasifusulina gracilis-Boultonia millsi sub-belt; 2. Sphaeroschwagerina subrotunda band.