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Zhenghecaris

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Zhenghecaris
Temporal range: Cambrian Stage 3
Fossil specimens of Zhenghecaris
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
Class: incertae sedis
Genus: Zhenghecaris
Vannier et al., 2006
Species:
Z. shankouensis
Binomial name
Zhenghecaris shankouensis
Vannier et al., 2006

Zhenghecaris shankouensis is an enigmatic arthropod from the Lower Cambrian Maotianshan Shales, either classified as a hurdiid[1] or thylacocephalan.[2] It is known from several specimens mostly preserving the carapace and eyes measuring roughly 15 cm (5.9 in), which mark it as one of the largest thylacocephalans, behind Ostenocaris, Dollocaris and Ainiktozoon, as well as the earliest since all other thylacocephalans are Ordovician or younger. Since no appendages have been preserved, the fossil may not be a thylacocephalan, with a hurdiid affinity being suggested instead, due to its resemblance to the H-element of genera such as Cambroraster.[1] It has also been suggested to be within Arthropoda incertae sedis, as the fragmentary remains cannot confidently be classified further.[3]

References

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  1. ^ a b Caron, Jean-Bernard; Moysiuk, Joe (2021). "A giant nektobenthic radiodont from the Burgess Shale and the significance of hurdiid carapace diversity". R. Soc. Open Sci. 8 (210664): 210664. Bibcode:2021RSOS....810664C. doi:10.1098/rsos.210664. PMC 8424305. PMID 34527273.
  2. ^ Vannier, Jean; Huang, Diying; Charbonnier, Sylvain; Xiu-Qiang, Wang; Chen, Jun-Yuan (June 2006). "The Early Cambrian origin of thylacocephalan arthropods". Acta Palaeontologica Polonica. 51 (2): 201–214.
  3. ^ Pates, Stephen; Lerosey-Aubril, Rudy; Daley, Allison C.; Kier, Carlo; Bonino, Enrico; Ortega-Hernández, Javier (19 January 2021). "The diverse radiodont fauna from the Marjum Formation of Utah, USA (Cambrian: Drumian)". Palaeontology and Evolutionary Science. 9: e10509. doi:10.7717/peerj.10509. PMC 7821760. PMID 33552709.