title: Myllokunmingiidae
text: # Myllokunmingiidae
  
  Myllokunmingiidae is a group of very early, jawless prehistoric fish (Agnathans) which lived during the Cambrian period. The Myllokunmingiids are the earliest known group of craniates. The group contains three genera, Haikouichthys, Myllokunmingia, and Zhongjianichthys. Their fossils have been found only in the Maotianshan Shales lagerstätte.
  
  ## Taxonomy
  
  * Order †Myllokunmingiida Shu, 2003
     * 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
  