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Biological Environment > Bony fish |
Earth Earlier Earlier 450 Million Years ago Later Earth After Animals Later |
This site tells the story of the history of the universe. Click Earlier and Later to follow the story. Note: Many facts have been simplified to make them easier to understand. |
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The bony fish evolved from the jawless fish about 450 million years ago. They evolved jaws about 50 million years later, developed heavy brain casing about 10 million years after this, and split into two main groups of fish: the lobe finned and the ray finned. At about the same time the shark group first appeared. | |
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Earth Earlier Earlier 450 Million Years ago Later Earth After Animals Later |
Biological Environment > Bony fish |
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