Bailongia

Extinct genus of arthropod

Bailongia
Temporal range: Cambrian Stage 4
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Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Arthropoda
(unranked): Artiopoda
Genus: Bailongia
Jiao et al. 2021
Species:
B. longicaudata
Binomial name
Bailongia longicaudata
Jiao et al. 2021

Bailongia is an extinct genus of arthropod known from a single species Bailongia longicaudata (longicaudata from Latin: "long-tailed") found in the Cambrian Stage 4 aged Guanshan Biota of Yunnan, China. It was around 5mm long and had a large head shield, nine overlapping tapering tergites and a relatively elongate tailspine. It has been recovered in a relatively basal position within Artiopoda, more derived than Squamacula or Protosutura, but outside Trilobitomorpha or Vicissicaudata.[1]

Phylogeny

After Jiao et al. 2021.[1]

Artiopoda 

Squamacula clypeata

Protosutura 

Bailongia longicaudata

Trilobitomorpha 
Vicissicaudata 

Sidneyia inexpectans

Emeraldella brocki

Cheloniellida

Cheloniellon calmani

Triopus draboviensis

Duslia insignis

Kodymirus vagans

Eozetetes gemmelli

Aglaspidida

Beckwithia typa

Chlupacaris dubia

Quasimodaspis brentsae

Tremaglaspis unite

Tremaglaspis vanroyi

Brachyaglaspis singularis

Cyclopites vulgaris

Australaglaspis stonyensis

Uarthrus instabilis

Flobertia kochi

Aglaspella granulifera

Gogglops ensifer

Glypharthrus simplex

Aglaspis spinifer

Chraspedops modesta

Glypharthrus thomasi

Glypharthrus trispinicaudatus

Glypharthrus magnoculus

References

  1. ^ a b Jiao, De-Guang; Du, Kun-Sheng; Zhang, Xi-Guang; Yang, Jie; Eggink, Daniel (May 2022). "A new small soft-bodied non-trilobite artiopod from the Cambrian Stage 4 Guanshan Biota". Geological Magazine. 159 (5): 730–734. doi:10.1017/S0016756821001254. ISSN 0016-7568. S2CID 245238634.
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Protosutura
Cheloniellida
  • Cheloniellon
  • Drabovaspis?
  • Duslia
  • Neostrabops
  • Paraduslia
  • Pseudarthron
  • Triopus
Aglaspidida
Tremaglaspididae
  • Brachyaglaspis
  • Chlupacaris
  • Cyclopites
  • Flobertia
  • Quasimodaspis
  • Tremaglaspis
Aglaspididae
  • Aglaspella
  • Aglaspis
  • Aglaspoides
  • Chraspedops
  • Glypharthrus
  • Gogglops
  • Hesselbonia
  • Setaspis
  • Tuboculops
  • Uarthrus
Xandarellida
Nektaspida
Emucarididae
Naraoiidae
Liwiidae
Conciliterga
Trilobita
    • see Trilobita
Cheloniellon calmani

Triarthrus Aglaspis barrandei

Retifacies abnormalis
  • Category
Taxon identifiers
Bailongia


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