小壳动物群
- 网络small shelly fauna;small shell-bearing fauna
小壳动物群-
海南岛中寒武世小壳动物群
Middle Cambrian Small Shelly fauna in Yaxian county , hainan Island
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青海东昆仑中段早寒武世小壳动物群的发现及其地质意义
Discovery of an early Cambrian Small Shelly fauna in the central sector of the East Kunlun mountains , qinghai , and its geological significance
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在这两期磷矿中分别发育有瓮安生物群和小壳动物梅树村生物群，这两个生物群代表了生命早期演化过程中的两次爆发事件。
The two biotas are representative of two biology explosion events during the early evolvement of life .