【摘要】 本文记述了采自平邑盆地固城组、卞桥组的介形类化石共计19属17种2新种2比较种20未定种,自下而上可建立固城组上段Ziziphocypris-Cypridea-Rhinocypris组合,卞桥组底部Frambocythere fangjiaheensis组合和卞桥组下部至上部的Lineocypris-Guanzhuangia-Heterocypris-Paracandona-Candona组合。根据介形类化石的对比研究并结合其它资料,固城组上段的时代应为晚白垩世,卞桥组底部的时代为晚白垩世晚期,卞桥组下部至上部的时代不晚于始新世。更多还原

【Abstract】 This article records the ostracode fossils amounting to 19 genera, 17 species, 2 new species, 2 conformis species and 20 indeterminate species, which are collected from the Gucheng and Bianqiao formations in the Pingyi Basin, Shandong Province. In ascending order, these ostracode fossils can be grouped into three assemblages such as Ziziphocypris-Cypridea-Rhinocypris assemblage of the Upper Member of Gucheng Formation, Frambocythere fangjiaheensis assemblage of the bottom of Bianqiao Formation and Lineocypris-Guanzhuangia-Heterocypris-Paracandona-Candona assemblage of the other part of Bianqiao Formation. Based on these ostracods and other evidence, the Upper Member of the Gucheng Formation belongs to the Late Cretaceous, the bottom of the Bianqiao Formation belongs to the Late Cretaceous and the other part of the Bianqiao Formation should be no later than Eocene.更多还原