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Acta Palaeontologica Polonica
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Acta Palaeontologica Polonica

A new euarthropod from the Cambrian Stage 4Guanshan Biota of South China

De-Guang Jiao and Kun-Sheng Du

Acta Palaeontologica Polonica 67 (4), 2022: 969-974 doi:https://doi.org/10.4202/app.00937.2021

A new small euarthropod Astutuscaris bispinifer gen. et sp. nov. is described from the early Cambrian Stage 4 GuanshanBiota in Yunnan, China. This new euarthropod possesses a wide head shield, a pair of possible eyes, paired frontalmostappendages located antero-medially, 11 imbricated tergites most of which have backward-directed tergopleura ending inalmost posteriorly oriented spines, and two well-marked wide spines. The affinity ofAstutuscarisamong euarthropods isuncertain because of the undefined nature of its frontalmost appendages, the incomplete head shield, the anterior trunktergites, and the limbs. There are about 24 species of non-trilobite euarthropods reported from the Guanshan Biota todate, the documentation of this new taxon expands the biological diversity of euarthropods from this important biota inYunnan, China.

Key words: Arthropoda, evolution, Cambrian, Guanshan Biota.

De-Guang Jiao [dgjiao@yxnu.edu.cn] and Kun-Sheng Du [kunshengdu@qq.com] (corresponding author), ResearchCenter of Paleobiology, Yuxi Normal University, 134 Phoenix Road, Yuxi, Yunnan, 653100, China; Institute of Paleontology,Yunnan University (Chenggong), Kunming, 650091, China.


This is an open-access article distributed under the terms of the Creative Commons Attribution License (for details please seecreativecommons.org), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.


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