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
Subphylum:	Vertebrata
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)