Vertebrate

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Vertebrate

Relation

Succeeds:

Animal

Supersedes

Carilaginous Fish c. BT 495 Jawless Fish c. BT 490 Bony Fish c. BT 487 Amphibia c. BT 489

Creation Date

c. BT 497

Ancestor created to function in aquatic environments and grow larger in size, necessitating the creation of the spine.

See Also

• Lists of Taxa
• Lists of Animals