Jianfengia

Jianfengia Temporal range: Cambrian Stage 3 (Atdabanian) ~521–514 Ma PreꞒ Ꞓ O S D C P T J K Pg N
Specimen NIGPAS 169957 from Mafang (scale bar: 1 mm)
Diagram in lateral view
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Arthropoda
Class:	†Megacheira
Family:	†Jianfengiidae
Genus:	†Jianfengia Hou, 1987
Species:	†J. multisegmentalis
Binomial name
†Jianfengia multisegmentalis Hou, 1987

Life restoration

Jianfengia is an extinct genus of Middle Cambrian (Atdabanian) megacheiran arthropod found in the Maotianshan Shale Lagerstätte of China. It contains the single species Jianfengia multisegmentalis.[1] The body is extremely elongated, though the animal itself was relatively small at less than 4 centimetres (1.6 in) in length.[2] The head has a pair of stalked eyes, a hypostome/labrum complex, a pair of great appendages with five podomeres, and four pairs of biramous limbs.[3] The maximum known number of trunk segments is 27, though most known specimens have 20, which are associated with pairs of biramous appendages, and the body ends with a telson spine. It has been placed as a member of the family Jiangfengiidae, alongside Fortiforceps and Sklerolibyon as well as possibly Parapeytoia.[2]

See also

• List of Chengjiang Biota species by phylum
• Megadictyon

References

1. Jianfengia in the Paleobiology Database
2. Aria, Cédric; Zhao, Fangchen; Zeng, Han; Guo, Jin; Zhu, Maoyan (December 2020). "Fossils from South China redefine the ancestral euarthropod body plan". BMC Evolutionary Biology. 20 (1): 4. doi:10.1186/s12862-019-1560-7. ISSN 1471-2148. PMC 6950928. PMID 31914921.
3. Zhang, Xilin; Liu, Yu; O'Flynn, Robert J.; Schmidt, Michel; Melzer, Roland R.; Hou, Xianguang; Mai, Huijuan; Guo, Jin; Yu, Mengxiao; Ortega‐Hernández, Javier (September 2022). Zhang, Xi‐Guang (ed.). "Ventral organization of Jianfengia multisegmentalis Hou, and its implications for the head segmentation of megacheirans". Palaeontology. 65 (5). doi:10.1111/pala.12624. ISSN 0031-0239. S2CID 252954394.