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"Mastodon is an extinct genus of proboscideans, closely allied to the true elephants. The genus ranged in time from the middle of the Miocene period to the end of the Pliocene in the Old World, when they became extinct. In America several species survived to a late leistocene period. "—(Charles Leonard-Stuart, 1911)

Mastodon

"Mastodon is an extinct genus of proboscideans, closely allied to the true elephants. The genus ranged…