Mammalia - Proboscidea - Gomphotheriidae

Alternative combinations: Mastodon (Tetralophodon) mirificus, Rhabdobunus mirificus, Tetralophodon mirificus

Synonyms: Mastodon successor Cope 1892, Stegomastodon arizonae Gidley 1926, Stegomastodon rexroadensis Woodburne 1961, Stegomastodon successor Cope 1892, Stegomastodon texanus Osborn 1924

Full reference: J. Leidy. 1858. Notice of Remains of Extinct Vertebrata, from the Valley of the Niobrara River, Collected during the Exploring Expedition of 1857, in Nebraska, under the Command of Lieut. G. K. Warren, U. S. Top. Eng., by Dr. F. V. Hayden, Geologist to the Expedition. Proceedings of the Academy of Natural Sciences of Philadelphia 10:15-89

Belongs to Stegomastodon according to J. Shoshani and P. Tassy 1996

See also Agenbroad et al. 1998, Cope 1893, Hay 1902, Hibbard and Riggs 1949, Kurten and Anderson 1980, Lambert and Shoshani 1998, Leidy 1858, Matthew 1918, Osborn 1918, Osborn 1924, Repenning et al. 1995, Woodburne 1961 and Zurita et al. 2004

Sister taxa: Stegomastodon aftoniae, Stegomastodon brasiliensis, Stegomastodon chapmani, Stegomastodon nebrascensis, Stegomastodon primitivus

Type specimens:

• Stegomastodon mirificus: Its type locality is Pawnee Loup branch of Niobrara River, which is in a Pleistocene terrestrial horizon in Nebraska
• Mastodon successor: Its type locality is near Mount Blanco, Site 5, which is in a Pliocene terrestrial horizon in the Blanco Formation of Texas.
• Stegomastodon arizonae:
• Stegomastodon rexroadensis:
• Stegomastodon texanus: Amer. Mus. 10622, a skull (skull and jaws with inferior and superior third molars).

Distribution:

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Specimen images are retrieved through the ePANDDA API.