What is the earliest known fish?

Animal Expert

Posted on 2022-01-10 13:35:01

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The early vertebrate Haikouichthys, dating from about 518 million years ago in China, may be the "ancestor of all vertebrates" and is one of the earliest known fish.

What was the first fish?

The first fish were primitive jawless fish (Agnasan) that emerged in the early Cambrian, but were generally rare until the rapid evolution of the Silurian and Devonian.

Are fish the oldest fossils?

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Agnasa: Early jawless fish. The earliest vertebrate fossils of a particular relationship are fragments of the skin armor of a jawless fish (Agnasa, Heterostraci), approximately 450 million years old, in the Upper Ordovician of North America.

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