Biology:Clypecaris

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Short description: Extinct genus of arthropods

Clypecaris
Temporal range: Cambrian Stage 3
Clypecaris pteroidea YKLP 13970.png
Fossil of C. pteroidea
Clypecaris serrata YKLP 12325a.png
Fossil of C. serrata
Scientific classification e
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Order: Hymenocarina
Genus: Clypecaris
Hou, 1999
Species
  • Clypecaris pteroidea Hou, 1999
  • Clypecaris serrata Yang et al, 2016
Reconstructions of Clypecaris serrata

Clypecaris is genus of bivalved Cambrian arthropod known from the Chengjiang biota of Yunnan, China. The genus was initially described for the type species C. pteroidea by Hou, 1999.[1] A second species C. serrata was described by Yang et al. in 2016. The species are primarily distinguished by the presence of a serrated edge on the front of the carapace of C. serrata. C. serrata is noted for the modification of an anterior pair of limbs into spined grasping appendages, indicating a predatory lifestyle. It is unknown whether a similar structure was present in C. pteroidea.[2] Clypecaris is considered to likely be a member or a close relative of Hymenocarina, and is closely related to Perspicaris.[3][4] As well as to Ercaicunia.[5]

See also

References

  1. Hou, X.-G. New rare bivalved arthropods from the Lower Cambrian Chengjiang fauna, Yunnan, China. J. Paleontol. 73, 102–116 (1999)
  2. Yang, Jie; Ortega-Hernández, Javier; Lan, Tian; Hou, Jin-bo; Zhang, Xi-guang (2016-06-10). "A predatory bivalved euarthropod from the Cambrian (Stage 3) Xiaoshiba Lagerstätte, South China". Scientific Reports 6 (1): 27709. doi:10.1038/srep27709. ISSN 2045-2322. PMID 27283406. Bibcode2016NatSR...627709Y. 
  3. Izquierdo‐López, Alejandro; Caron, Jean‐Bernard (November 2021). Zhang, Xi‐Guang. ed. "A Burgess Shale mandibulate arthropod with a pygidium: a case of convergent evolution" (in en). Papers in Palaeontology 7 (4): 1877–1894. doi:10.1002/spp2.1366. ISSN 2056-2799. https://onlinelibrary.wiley.com/doi/10.1002/spp2.1366. 
  4. Izquierdo-López, Alejandro; Caron, Jean-Bernard (2019). "A possible case of inverted lifestyle in a new bivalved arthropod from the Burgess Shale". Royal Society Open Science 6 (11): 191350. doi:10.1098/rsos.191350. PMID 31827867. Bibcode2019RSOS....691350I. 
  5. Zhai, Dayou; Ortega-Hernández, Javier; Wolfe, Joanna M.; Hou, Xianguang; Cao, Chunjie; Liu, Yu (January 2019). "Three-Dimensionally Preserved Appendages in an Early Cambrian Stem-Group Pancrustacean" (in en). Current Biology 29 (1): 171–177.e1. doi:10.1016/j.cub.2018.11.060. PMID 30595518. 

Wikidata ☰ Q104841260 entry