Myllokunmingiidae

{{Short description|Extinct family of jawless fishes}}

{{Automatic Taxobox

| fossil_range = Cambrian Stage 3, {{Fossil range|518|ref={{Cite journal|last1=Yang|first1=C.|last2=Li|first2=X.-H.|last3=Zhu|first3=M.|last4=Condon|first4=D. J.|last5=Chen|first5=J.|date=2018|title=Geochronological constraint on the Cambrian Chengjiang biota, South China|journal=Journal of the Geological Society|language=en|volume=175|issue=4|pages=659–666|doi=10.1144/jgs2017-103|bibcode=2018JGSoc.175..659Y |s2cid=135091168 |issn=0016-7649|url=http://nora.nerc.ac.uk/id/eprint/521412/1/2018-JGS-Chuan%20Yang%20et%20al.pdf}}}}

| image = Haikouichthys 3d.png

| image_caption = Reconstruction of Haikouichthys

| taxon = Myllokunmingiidae

| authority = Shu, 2003

| parent_authority = Shu, 2003

| subdivision_ranks = Species

| subdivision =

• †Haikouichthys
• †Myllokunmingia
• †Zhongjianichthys

}}

Myllokunmingiidae is a group of very early, jawless prehistoric fish (Agnathans) which lived during the Cambrian period.{{cite journal|last=Shu|first=Degan|title=A paleontological perspective of vertebrate origin|journal=Chinese Science Bulletin|date=April 2003|volume= 48|issue= 8|pages=725–735|doi=10.1007/BF03187041|bibcode=2003ChSBu..48..725S|s2cid=85163902 }} 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.