瓮安生物群

瓮安生物群中海绵化石的新证据

New Evidences of Sponge Fossils in the Weng'an Biota

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 .

磷酸盐化球状化石是埃迪卡拉纪瓮安生物群中的主要化石类型。

The affinity of phosphatized globular fossils , one of the important types in the Ediacaran Weng'an biota , was first interpreted as that of green algae .