Life in the Ordovician: 485 - 444 million years ago
Life in the Ordovician: 485 - 444 million years ago
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Arandaspis was an early jawless vertebrate (an arandaspid) from the Ordovician Period, living roughly 480 to 470 million years ago. Reaching about 15 cm (6 in) in length, it had bony armor covering the head and front part of the body, with a more weakly known tail region. It likely lived close to the seafloor and probably fed on small food particles or organisms taken in through its jawless mouth, although this feeding style is inferred from its anatomy rather than directly preserved evidence. I
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