Mammalia - Artiodactyla - Camelidae

Alternative combinations: Holomeniscus macrocephalus, Tanupolama macrocephala

Synonyms: Camelus americanus Wortman 1898, Hemiauchenia blancoensis Meade 1945, Hemiauchenia seymourensis Hibbard and Dalquest 1962, Lama hollomani Hay and Cook 1930, Lama stevensi Merriam and Stock 1925, Prochenia americana Wortman 1898, Tanupolama americana Wortman 1898, Tanupolama blancoensis Meade 1945, Tanupolama hollomani Hay and Cook 1930, Tanupolama seymourensis Hibbard and Dalquest 1962, Tanupolama stevensi Merriam and Stock 1925

Belongs to Hemiauchenia according to J. A. Meachen 2005

Sister taxa: Hemiauchenia edensis, Hemiauchenia gracilis, Hemiauchenia guanajuatensis, Hemiauchenia minima, Hemiauchenia paradoxa, Hemiauchenia vera

Average measurements (in mm): M1 22.0 x 21.9, M2 27.4 x 19.9, M3 29.1 x 17.9, m1 20.1 x 14.3, m2 16.2 x 15.8, m3 15.1 x 14.5