New Species of Permian Herbivorous Tetrapod Identified in China
Paleontologists have identified a new genus and medium -sized soresaur species of two fossilized species found in China in 2018.
The reconstruction of an artist of Yinshanosaurus Angustus. Image credit: X.-C. Guo, Institute of vertebrate paleontology and paleoanthropology.
Appointed Yinshanosaurus AngustusThe newly identified species traveled the land during the last Permian period, between 259 and 254 million years.
The former beast was a member of Pareiasauria, a specialized group of herbivorous tetrapods that existed throughout the Supercontinent pangea during the Middle Permian.
“Pareiasauria are bizarre herbivorous clade of tetrapods that existed in the guadalupian and lopingian and we are victim of booth the late capital and the end-permian mass extinction events,” Said Dr. Jian Yi and Jun Liu from the Institute of Vertebrate Paleontology and Paleoanthropy at the Chinese Academy of Sciences, the University of Chinese Academy of Sciences, and Institut de Paleontologie de Chongqing.
“Pareiasauria has a global distribution, with fossils discovered in Africa, Europe, Asia and South America.”
“The parasaurs were current primary consumers in several fauna of land tetrapods, including late fauna in northern China.”
“Since the 1960s, eight Chinese species of the Pareiasaur have been described.”
Two specimens – an almost complete skull and a partial postcranian skeleton articulated with an almost complete skull – were unearthed in China in 2018.
“The first sample was searched with dark purple Silstone in the lower part of the Sunjiagou formation, near the village of Zhangjagetuo, Baode County, the city of Xinzhou, Shanxi,” said paleontologists.
“The second specimen was searched from Mudstone Limonux violated in the upper part of member I of the formation of Naobaogou, near the village of Qiandon, Shiguai district of the city of Baotou, Nei Mongol.”
According to the authors, Yinshanosaurus Angustus had the narrowest skull of all the pariahs, with a length of skull more than twice the width of the skull at the side of the cheeks.
“The skeleton of Yinshanosaurus Angustus Provides the cranial and comprehensive postconal details of Chinese pariahs for the first time, “they said.
Their article was published this month in the journal Paleontology documents.
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Jian Yi and Jun Liu. 2025. The naobaogou formation of the Upper Permian Naobaogou formation: a new medium -sized paneasaler Yinshanosaurus Angustus and its implications for the phylogenetic relationships of the parias. Paleontology documents 11 (3): E70020; DOI: 10.1002 / SPP2.70020
