Myllokunmingiidae

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
Kingdom:	Animalia
Phylum:	Chordata
Infraphylum:	Agnatha
Order:	† Myllokunmingiida Shu, 2003
Family:	† Myllokunmingiidae Shu, 2003
Species
† Haikouichthys † Myllokunmingia † Zhongjianichthys

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.

Taxonomy

• Order †MyllokunmingiidaShu, 2003 ^{[3] [4] [5]}
  • Family †MyllokunmingiidaeShu, 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 (2018). "Family-group names of fossil fishes". European Journal of Taxonomy. 466: 1–167. doi:10.5852/ejt.2018.466.

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