ammonites
Mammut americanum Kerr 1792 (American mastodon)

Mammalia - Proboscidea - Mammutidae

Alternative combinations: Elephas americanus, Mammut americanus, Mastodon americanus

Synonyms: Mammut adamsi Hibbard 1944, Mammut ohioticum Blumenbach 1797, Mammut progenium Hay 1914, Mastodon ohioticus Blumenbach 1797, Mastodon progenius Hay 1914, Pliomastodon adamsi Hibbard 1944, Tapirus mastodontoides Harlan 1825, Trilophodon ohioticus Blumenbach 1797

Belongs to Mammut according to G. G. Simpson 1945

Sister taxa: Mammut cosoensis, Mammut furlongi, Mammut matthewi, Mammut raki, Mastodon spenceri, Mastodon bumiajuensis

Average measurements (in mm): M1 82.3 x 67.9, M2 106.0 x 82.6, M3 153.2 x 85.0, m1 107.9 x 81.4, m2 102.2 x 81.2, m3 156.0 x 84.7, femur length 899.7, femur circumference 390.0, fibula 595.6 x 72.0, fibula circumference 234.0, humerus length 856.1, humerus circumference 455.6, radius length 658.8, tibia 646.5 x 127.0, tibia circumference 352.3, ulna length 678.9, ulna circumference 331.1

Estimated body mass: 2.28 tons based on femur circumference, femur length, humerus circumference, humerus length, tibia length, and ulna length