New Dinosaur Teeth from the Upper Cretaceous Nenjiang Formation in Songliao Basin, Northeast China

Kaifeng YU; Wenhao WU; Wei SUN; Jun CHEN; Xuri WANG

doi:10.1111/1755-6724.15288

Acta Geologica Sinica (English Edition) ›› 2025, Vol. 99 ›› Issue (2) : 320 -331. DOI: 10.1111/1755-6724.15288

Original Article

New Dinosaur Teeth from the Upper Cretaceous Nenjiang Formation in Songliao Basin, Northeast China

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Abstract

Twelve new dinosaur teeth have recently been recovered from three localities in the Upper Cretaceous Nenjiang Formation of the Songliao Basin. Although fragmentary, the material offers enough evidence to identify the following taxa: tyrannosaurids, dromaeosaurines, velociraptorines, hadrosauroids, and titanosaurs. In addition to the previously known dinosaurs from the basin, several new ones have been identified, extending the paleogeographic range of related taxa. The discovery of these new fossil remains provides valuable insights into dinosaur diversity and sheds light on the terrestrial ecosystem during the Late Cretaceous in the Songliao Basin.

Keywords

vertebrate paleontology / dinosaurs / biodiversity / Nenjiang Formation / Late Cretaceous / Songliao Basin

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Kaifeng YU, Wenhao WU, Wei SUN, Jun CHEN, Xuri WANG. New Dinosaur Teeth from the Upper Cretaceous Nenjiang Formation in Songliao Basin, Northeast China. Acta Geologica Sinica (English Edition), 2025, 99(2): 320-331 DOI:10.1111/1755-6724.15288