How To Use Age of fishes In A Sentence

• The other rib and limb bones eventually hardened from their vestigial origins in the cartilage of fishes.
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• The other rib and limb bones eventually hardened from their vestigial origins in the cartilage of fishes.
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• That time, part of an interval of Earth's history called the Devonian Period by scientists such as geologists and paleontologists, is known popularly as the Age of Fishes.
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