【摘要】 <正> 本文记述鲎虫化石的1个新科2个新属种。化石产自山西交城洪相乡裴家山的刘家沟组(T₁₁)。 本处的刘家沟组,以红色细粒长石砂岩为主,夹粉红色砂砾岩,灰绿色砂岩,页岩透镜体,鲎虫化石产于薄层灰绿色页岩之中。 鲎虫化石,在分类上隶属于甲壳纲背更多还原

【Abstract】 The present paper has described the specimens of one new family and two new genera of Triopsids obtained from the greyish-green shale of the Early Triassic Liujiagou Formation (T11)in Peijiashan, Shanxi Province(fig.1). They are associated with plante, phylopoda, spores and pollen,etc.The types of the new taxa are preserved in Beijing Natural History Museum.更多还原