Island 35 Mastodon Island 35 Mastodon The Island 35 Mastodon was discovered on Island No. 35 of the Mississippi River in Tipton County, Tennessee, United States. In 1900, a Pleistocene mastodon skeleton was excavated approximately east of Reverie, Tennessee and southeast of Wilson, Arkansas. In 1957 the site was reported as destroyed. Mastodons are members of the prehistoric, extinct genus "Mammut". They resemble modern elephants. Native to North America, they are said to have lived on the North American continent from almost 4 million years ago, in the Pliocene Epoch, until their eventual disappearance about 10,000 years ago. In 1900, archaeologist James K.
Second voyage of HMS Beagle tooth among the Punta Alta fossils. This discovery was later explained as part of the evolution of the horse. The "soft as cheese" "Mastodon" bones at the Paraná River were identified as two gigantic skeletons of "Mastodon andium", and mastodon teeth were also identified from Santa Fé and the Carcarañá River. The pieces of spine and a hind leg from Port S. Julian which Darwin had thought came from "some large animal, I fancy a Mastodon" gave Owen difficulties, as the creature which he named "Macrauchenia" appeared to be a "gigantic and most extraordinary pachyderm", allied to the "Palaeotherium", but