Guangweicaris is an extinct genus of fuxianhuiid arthropod known from the Cambrian period. It is only known from the type species Guangweicaris spinatus, which is known from the Cambrian Stage 4 Guanshan Biota near Kunming. It is currently the latest known fuxianhuiid. It was first described in 2007,[1] and was given a comprehensive re-description in 2020.[2] It is currently known from over 150 specimens. Within the fuxianhuiids it is sister to Fuxianhuia, together forming the clade Fuxianhuiidae. In comparison to Fuxianhuia it has a wide, oval shaped opisthothorax and a proportionally longer, narrow tail-like abdomen, with 3 prothoracic tergites, 5 opisthothoracic tergites and 7 abdominal tergites, it also possesses a row of spines running down the central axis of the body from the second opisthothoracic tergite.[2]
Phylogeny
From [3]
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References
- ^ H.-L. Luo, X.-P. Fu, S.-X. Hu, Y. Li, S.-G. Hou, T. You, J.-Y. Pang and Q. Liu. 2007. A New Arthropod, Guangweicaris Luo, Fu et Hu gen. nov. from the Early Cambrian Guanshan Fauna, Kunming, China. Acta Geologica Sinica 81:1-7
- ^ a b Chen, Hong; Legg, David; Liu, Yu; Hou, Xian-guang (2020). "New data on the anatomy of fuxianhuiid arthropod Guangweicaris spinatus from the lower Cambrian Guanshan Biota, Yunnan, China". Acta Palaeontologica Polonica. 65. doi:10.4202/app.00508.2018.
- ^ Yang, Jie; Ortega-Hernández, Javier; Legg, David A.; Lan, Tian; Hou, Jin-bo; Zhang, Xi-guang (2018-02-01). "Early Cambrian fuxianhuiids from China reveal origin of the gnathobasic protopodite in euarthropods". Nature Communications. 9 (1): 470. Bibcode:2018NatCo...9..470Y. doi:10.1038/s41467-017-02754-z. ISSN 2041-1723. PMC 5794847. PMID 29391458.
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