山东平邑盆地固城组、卞桥组共发现介形类化石21属21种4比较种13未定种,本文记述了其中的17属16种4比较种9未定种。卞桥组一段下部的介形类可称为Talicypridea reticulata-Mongolocypris longa-Frambocythere fangjiaheensis介形类动物群,含化石地层的时代被确认为晚白垩世最晚期,即马斯特里赫特期的晚期。该动物群的发现,为平邑盆地白垩系/古近系界线的确定提供了十分重要的依据。 In Gucheng and Bianqiao formations in Pingyi, Shandong, a total of 21 species of 21 genera of Ostracoda fossils and 13 species of undetermined species have been found. Among them, 17 genera, 16 species, 4 species and 9 species are undetermined. The lower part of the first member of the Bianqiao Formation may be called the Talicypridea reticulata-Mongolocypris longa-Frambocytherem fangjiaheensis. The epoch-bearing fauna of the fossil-bearing formations was identified as the late Late Cretaceous, ie, late Maastricht . The discovery of this fauna has provided a very important basis for the determination of the Cretaceous / Paleogene boundary in the Pingyi basin.