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Qiupa Formation

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Qiupa Formation

The Qiupa Formation (Chinese: 秋扒组; pinyin: Qiūpázǔ) is a Late Cretaceous Maastrichtian geologic formation in Henan Province, central China. It is rich in dinosaur eggs and bones, such as those of carnivorous and herbivorous dinosaurs. The Qiupa Formation is considered to be Late Maastrichtian in age, about 72 million and 66 million years ago.

The sedimentation is characterized for the presence of calcareous mudstone interbedded with thin fine conglomerates, brownish red thick-bedded siltstone and parallel and cross laminations. This sedimentation indicates habitats composed by large and shallow meanders with braided river deltas.

The Qiupa Formation has yielded numerous dinosaur fossils, particularly eggs. The remains of various theropods such as troodontids, dromaeosaurids and oviraptorosaurs have been found. In addition, indeterminate remains of sauropods, ornithopods, ankylosaurs, lizards, turtles and a possible avian bone are reported. Therizinosaurids Protoceratopsids, and medium sized sauropods are also known from the Qiupa Formation

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