Fengzhengia

Last updated

Fengzhengia
Temporal range: Cambrian Stage 3
20220220 Fengzhengia mamingae diagrammatic reconstruction.png
Diagrammatic reconstruction
Fengzhengia.png
Life restoration
Scientific classification OOjs UI icon edit-ltr.svg
Kingdom: Animalia
Phylum: Arthropoda
Genus: Fengzhengia
O'Flynn et al., 2022
Species:
F. mamingae
Binomial name
Fengzhengia mamingae
O'Flynn et al., 2022

Fengzhengia is an extinct genus of arthropod known from a single species, Fengzhengia mamingae from the Cambrian aged Chengjiang Biota of Yunnan, China. It is thought to be a basal arthropod, as one of the most basal members of Deuteropoda. Like other basal deuteropods, Fengzhengia has an upward curling pair of "frontal appendages" with at least 6 segments which bear endites, contrasting with the downward curving pair of frontal appendages possessed by radiodonts. The head has a pair of stalked eyes. The trunk had 15 tergites the first nine of which had upward facing spines, with the trunk terminating with a tail fan. The trunk seemingly had pairs of biramous limbs, with paddle-shaped exopods. It is thought to have been nektobenthic (swimming just above the sediment), and either a scavenger or a predator. A close relationship with the genus Kylinxia has been suggested. [1]

Cladogram after O’Flynn et al, 2023: [2]

Total group Arthropoda

"Gilled lobopodians" ( Pambdelurion , Kerygmachela ) 20191022 Kerygmachela kierkegaardi without lobopods.png

Opabinia 20191108 Opabinia regalis.png

Radiodonta (e.g Anomalocaris ) 20191203 Anomalocaris canadensis.png

Deuteropoda

Kylinxia 20210310 Kylinxia zhangi.png

Fengzhengia Fengzhengia.png

Megacheira 20191020 Yohoia tenuis.png

Habeliida Habelia reconstruction from Aria & Caron 2017 modified.png

Mollisonia 20191003 Mollisonia plenovenatrix side.png

Chelicerata (horseshoe crabs, sea spiders, arachnids, etc) 20200813 Lunataspis aurora.png

"Great appendage bivalved forms" ( Occacaris , Forfexicaris )

Isoxyida Artistic reconstruction of Isoxys curvirostratus.jpg

Artiopoda (including Trilobita) Estonian Museum of Natural History - trilobite - Hydrocephalus.png

Mandibulata

Fuxianhuiida 20211117 Alacaris mirabilis.png

Myriapoda (millipedes, centipedes, etc) Scolopendra multidens Guang Xi Sheng Chan .jpg

Hymenocarina 20211025 Waptia fieldensis.png

Pancrustacea (crustaceans, insects, etc)

See also

References

  1. O'Flynn, Robert J.; Williams, Mark; Yu, Mengxiao; Harvey, Thomas; Liu, Yu (2022). "A new euarthropod with large frontal appendages from the early Cambrian Chengjiang biota". Palaeontologia Electronica. doi: 10.26879/1167 .
  2. O’Flynn, Robert J.; Liu, Yu; Hou, Xianguang; Mai, Huijuan; Yu, Mengxiao; Zhuang, Songling; Williams, Mark; Guo, Jin; Edgecombe, Gregory D. (August 2023). "The early Cambrian Kylinxia zhangi and evolution of the arthropod head" (PDF). Current Biology. 33 (18): 4006–4013.e2. Bibcode:2023CBio...33E4006O. doi:10.1016/j.cub.2023.08.022. ISSN   0960-9822. PMID   37643622.