报道了安徽省合肥盆地首次发现的蛋化石。蛋化石呈长形，外表面具有细脊状纹饰，蛋壳径切面可见由锥体层和柱状层组成，因此将其归入到长形蛋科(Elongatoolithidae)。又基于蛋壳较薄，小于1 mm, 锥体层与柱状层界线不明显，将其归入到长形蛋属(Elongatoolithus)。由于蛋化石被压扁较为严重，对蛋体形状指数产生较大影响，蛋壳内外表面由于受到侵蚀而造成缺失，因此将其暂定为长形蛋属未定种(Elongatoolithus oosp.)。合肥盆地蛋化石和骨骼化石的发现，丰富了安徽省蛋和骨骼化石的分布，同时也拓展了长形蛋类的古地理分布，进一步为该区域晚白垩世地层对比提供了确切的实物证据。

This report is about the first record of non-avian dinosaur eggs in the Hefei Basin, Anhui Province, China. Based on the combination of elongated egg body, linear ridges on the outer surface and two structure layer, the eggs can be referred to Elongatoolithidae. The gradual boundary between the cone and the column layers as well as the relative thin eggshell (less than 1 mm) indicates its affinity within Elongatoolithus. The eggs are identified as Elongatoolithus oosp., as they were severely compressed and experienced erosion on both inner and outer surfaces. The discovery of egg fossil in the Hefei Basin offers evidence for stratum comparison in this region and supplements the diversity of egg fossils in Anhui. Meanwhile, this discovery also enriches the paleogeographic distribution of elongatoolithids.