Compared to mammoths, mastodons had shorter legs, a longer body and were more heavily muscled, a build similar to that of the current Asian elephants. americanum was around 2.3 m (7 ft 7 in) in height at the shoulders, corresponding to a large female or a small male, but large males could grow up to 2.8 m (9 ft 2 in) in height.However, the 35-year-old specimen AMNH 9950 grew 2.89 metres (9.5 ft) tall and weighed 7.8 tonnes (7.7 long tons; 8.6 short tons), and another male grew 3.25 metres (10.7 ft) tall and weighed 11 tonnes (11 long tons; 12 short tons).The change was met with resistance, and authors sometimes applied "Mastodon" as an informal name so it became the common term for members of the genus. americanum, the American mastodon, the best known and the last species of Mammut, its earliest occurrences date from the early-middle Pliocene (early Blancan stage).It had a continent wide distribution, especially during the Pleistocene epoch, However, like M. cosoensis—found in the Coso Formation of California, dating from the late Pliocene, originally a species of Pliomastodon, Since a tentative 1977 report of M." data-medium-file=" data-large-file=" /Sequence of a plant growing in dirt, profiled against a white background.Mastodons (Greek: μαστός "breast" and ὀδούς, "tooth") are any species of extinct mammutid proboscideans in the genus Mammut, distantly related to elephants, that inhabited North and Central America during the late Miocene or late Pliocene up to their extinction at the end of the Pleistocene 10,000 to 11,000 years ago.Mastodons lived in herds and were predominantly forest dwelling animals that fed on a mixed diet obtained by browsing and grazing with a seasonal preference for browsing, similar to living elephants. americanum, the American mastodon, is the youngest and best-known species of the genus.
Modern reconstructions based on partial and skeletal remains reveal that mastodons were very similar in appearance to elephants and, to a lesser degree, mammoths, though not closely related to either one.It had a continent-wide distribution, especially during the Pleistocene epoch, However, like M. cosoensis—found in the Coso Formation of California, dating from the late Pliocene, originally a species of Pliomastodon, Since a tentative 1977 report of M.matthewi, some authors do not consider it sufficiently distinct from M. matthewi in China, there have been no reports of currently recognized Mammut species outside of North America according to Paleobiology database (which does not recognize M. Over the years, several fossils from localities in North America, Africa and Asia have been attributed to Mammut, but only the North American remains have been named and described, one of them being M.Malheur County is located in beautiful Eastern Oregon.It is a place filled with fascinating history, diverse landscape and friendly people.