Where do the oldest fossil vertebrates and proto-vertebrates come from, and what do they tell us...
Where do the oldest fossil vertebrates and proto-vertebrates come from, and what do they tell us about early vertebrate evolution?
Homework Answers
The oldest known fossil vertebrates were Myllokunmingia and Haikouichthys which belonged to the early Cambrian period and a type of fish which were heavily armored and belonged to the Ordovician period.They possessed a rudimentary vertebrate.The oldest vertebrates and proto-vertebrates had a marine origin.
In the evolution of vertebrates advent of definitive neural crest played a vital role.With evolution, vertebrates gradually evolved a proper vertebral column,jaws and an endoskeleton. With time the vertebrate body became more complex.
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Where do the oldest fossil vertebrates and proto-vertebrates
come from, and what do they tell us...
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