Myllokunmingiidae

Myllokunmingiidae is a group of very early, jawless prehistoric fish (Agnathans) which lived during the Cambrian period.^[2] The Myllokunmingiids are the earliest known group of craniates. The group contains only three known genera, Haikouichthys, Myllokunmingia, and Zhongjianichthys. Their fossils have been found only in the Maotianshan Shales lagerstätte.

Myllokunmingiidae Temporal range: Cambrian Stage 3, 518 Ma[1] PreꞒ Ꞓ O S D C P T J K Pg N ↓
Reconstruction of Haikouichthys
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Order:	†Myllokunmingiida Shu, 2003
Family:	†Myllokunmingiidae Shu, 2003
Species
†Haikouichthys †Myllokunmingia †Zhongjianichthys

Taxonomy

• Order †Myllokunmingiida Shu, 2003^[3][4][5]
  • Family †Myllokunmingiidae Shu, 2003
    • Genus †Haikouichthys Luo, Hu & Shu 1999 sensu Shu et al., 2003
      • Species †Haikouichthys ercaicunensis Luo, Hu & Shu 1999 sensu Shu et al., 2003
    • Genus †Myllokunmingia Shu, Zhang & Han, 1999
      • Species †Myllokunmingia fengjiaoa Shu, Zhang & Han, 1999
    • Genus †Zhongjianichthys Shu, 2003
      • Species †Zhongjianichthys rostratus Shu, 2003

See also

Other very early vertebrates or transitional between olfactores and vertebrates are:

• Yunnanozoon (Terrenuevian; junior synonym: Haikouella)
• Zhongxiniscus (Cambrian Stage 3)
• Metaspriggina (Middle Cambrian)
• Palaeospondylus (Middle Devonian)

References

1. Yang, C.; Li, X.-H.; Zhu, M.; Condon, D. J.; Chen, J. (2018). "Geochronological constraint on the Cambrian Chengjiang biota, South China" (PDF). Journal of the Geological Society. 175 (4): 659–666. Bibcode:2018JGSoc.175..659Y. doi:10.1144/jgs2017-103. ISSN 0016-7649. S2CID 135091168.
2. Shu, Degan (April 2003). "A paleontological perspective of vertebrate origin". Chinese Science Bulletin. 48 (8): 725–735. Bibcode:2003ChSBu..48..725S. doi:10.1007/BF03187041. S2CID 85163902.
3. Nelson, Joseph S.; Grande, Terry C.; Wilson, Mark V. H. (2016). Fishes of the World (5th ed.). John Wiley & Sons. ISBN 9781118342336.
4. van der Laan, Richard; Eschmeyer, William N.; Fricke, Ronald (2014). "Family-group names of Recent fishes". Zootaxa. 3882 (2): 001–230. doi:10.11646/zootaxa.3882.1.1. ISSN 1175-5326. PMID 25543675. S2CID 31014657.
5. van der Laan, Richard (2016). "Family-group names of fossil fishes". {{cite journal}}: Cite journal requires |journal= (help)

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