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<p>In recent years, continuous discoveries of dinosaur-dominated body&#xa0;fossil and ichnofossil assemblages have been made in northwestern China, which has gradually enriched the understanding of the inland faunas of East Asia during the late Early Cretaceous. The Yaoshan area, located at the northeastern edge of the Liupanshan Basin (Central Ningxia) offers valuable insight into the ancient ecosystem and sedimentary conditions of the region. This paper presents the discovery of Early Cretaceous dinosaur tracks from the Madongshan Formation at the Yaoshan site. The dinosaur tracks discovered at the Yaoshan site include those from small sauropods (majority of pes length &lt; 25&#xa0;cm)&#xa0;and small ?bipedal dinosaur (9.3 to 20.4&#xa0;cm in&#xa0;pes length), with theropod, ornithopod, and even sauropod affinities of varying sizes. The findings not only contribute to our understanding of the fauna that inhabited north-western China during the late Early Cretaceous, but also shows the interactions between the dinosaurs and microhabitats.</p>

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A new sauropod-dominated tracksite from the Lower Cretaceous in central Ningxia, northwestern China, and the implications on palaeoenvironments

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年7月8日

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  • Qing Yang,
  • Lida Xing,
  • Fangpeng Du,
  • Qiyan Chen,
  • Hendrik Klein,
  • Anthony Romilio,
  • Yufei Jin,
  • Lin Liu,
  • Juan Qi,
  • Ming Zhao,
  • Xi Chen,
  • Ya Zhao,
  • Lixin Wei,
  • Yang Wan

摘要

In recent years, continuous discoveries of dinosaur-dominated body fossil and ichnofossil assemblages have been made in northwestern China, which has gradually enriched the understanding of the inland faunas of East Asia during the late Early Cretaceous. The Yaoshan area, located at the northeastern edge of the Liupanshan Basin (Central Ningxia) offers valuable insight into the ancient ecosystem and sedimentary conditions of the region. This paper presents the discovery of Early Cretaceous dinosaur tracks from the Madongshan Formation at the Yaoshan site. The dinosaur tracks discovered at the Yaoshan site include those from small sauropods (majority of pes length < 25 cm) and small ?bipedal dinosaur (9.3 to 20.4 cm in pes length), with theropod, ornithopod, and even sauropod affinities of varying sizes. The findings not only contribute to our understanding of the fauna that inhabited north-western China during the late Early Cretaceous, but also shows the interactions between the dinosaurs and microhabitats.