fish
The vertebrates have a nebulous starting point. There are some chordates that have more of a notochord than a true vertebrate column. Some taxicologists are more comfortable saying that a Coelacanth has a notochord rather than a vertebrate column when clearly the vertebrate are present in this animal.
So its is a matter of your own definition. One could say 'at a stretch' that the hagfish and lamprey are the most ancient vertebrates.
Elza Olson
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∙ 14y agoFish were the first vertebrates to evolve. They were jaw less and were covered in bony plates. Discovered about 510 million years ago.
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∙ 12y agoThe Agnatha, or jawless fishes, are the oldest known vertebrates. The only surviving members of this class are the hagfish and lampreys , known as cyclostomes.
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∙ 15y agoa fishes
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∙ 12y agoFish
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∙ 14y agoreptiles
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∙ 14y agoFish
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∙ 10y agofishes
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its fish
Fossils of vertebrates are similar to the bones of living vertebrates because they were once part of living organisms that shared similar anatomical structures and functions. Over time, the bones of vertebrates have undergone evolutionary changes, but many core features have been conserved due to their essential functions. This similarity allows paleontologists to make informed comparisons and infer the evolutionary relationships between ancient and modern vertebrates.
vertebrates
MOB
What materials make up the endoskeletons of most vertebrates
fish The vertebrates have a nebulous starting point. There are some chordates that have more of a notochord than a true vertebrate column. Some taxicologists are more comfortable saying that a Coelacanth has a notochord rather than a vertebrate column when clearly the vertebrate are present in this animal. So its is a matter of your own definition. One could say 'at a stretch' that the hagfish and lamprey are the most ancient vertebrates.
Yes, most fish species have backbones, therefore are vertebrates.
since rats are mammals, they are most definitely vertebrates.
a swarm
A blessing.
Sea turtles are among the world's most ancient vertebrates. ... Sea turtles are reptiles, like snakes and lizards, and breathe air.
Five organs that are found in most vertebrates are the brain, stomach, heart, eyes and skin. Vertebrates are animals that have a spine.
They are Vertebrates, most of them have a spine which puts them in the vertebrate category!