In Depth As a relative to Haikouichthys and Myllokunmingia, Zhongjianichthys is widely considered to have been a very primitive fish. Zhongjianichthys still lacked scales that are commonly seen in modern fish, and may have instead had a smooth skin texture similar to that of a hagfish. Further Reading – A paleontological perspective of vertebrate origin. … Read more
In Depth A member of the Craniata, Myllokunmingia is considered to have been a relative of organisms such as lampreys and hagfish, though even the latter has had a controversial assignment. Myllokunmingia seems to have had a body divided into twenty-five segments with five or six gills. Myllokunmingia is also believed to have been related … Read more
In Depth Haikouichthys is one of the earliest fish discovered and by extension, earliest vertebrates. At the time of the discovery the first fish were thought to have evolved 50 million years later. Haikouichthys had between six to nine girls, and what appears to be a notochord. A dorsal fin runs almost the entire length … Read more