Paul, the Haikouichthys that was loved by many

By: Justin A. T1 Science

What is a Haikouichthys?

What is a Haikouichthys? The Haikouichthys was a early living fish that became extinct by evolution. our Haikouichthys friend is named Paul. Paul lived in the early Cambrian, about five million years ago, on the shallow seas of Asia. Paul, like The other Haikouichthys was one inch long, smaller then the size of a thumb!, weighed 1 ounce, and had a fin along his back. he was the first back boned animal ever! It is still unknown if the Haikouichthys really was the first fish


Paul ate very small marine organisms such as Bacteria, Escherichia coli, Staphylococcus aureus, and Chlamydia trachomatis. His favorite was Bacteria.


Paul’s head was distinct from his tail, his right side matched up with its left side and he had two eyes and a mouth on its head, which was uncommon for most animals at that time. Based on other Cambrian creatures such as early Edrioasteroids, and Eocrinoids Paul and his kind may have been the most advanced underwater life in that time period.

Paul's nicknames and sientific names

Paul was Known as a Haikouichthys, and as the Haikou Fish. Pauls scientific name is the Haikouichthys ercaicunensis. Paul was named The Haikouichthys ercaicunensis by Luo in 1999.

Paul's reletives

Paul is now extinct, but his reletives are still around. Paul's son, Henry evolved into a Myllokunmingia fengjiaoa, who are also now extinct. since the Haikouichthys was the first back boned animal, monkeys, all ampibians and even Humans! without Paul and his Haikouichthys friends, we would not have spines or back bones.


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