(Three part tooth).
Named By: Florentino Ameghino - 1887.
Classification: Chordata, Mammalia, Notoungulata, Toxodontidae, Haplodontheriinae.
Species: T. gaudryi (type).
Size: Exact details unavilable.
Known locations: South America - Solimoes Formation.
Time period: Tortonian of the Miocene.
Fossil representation: Partial remains.
Trigodon seems to have been a large heavily built herbivore of the late Miocene of South America. Combined with reasonably long legs for its build, Trigodon is considered to have inhabited wetland swamps were it browsed upon softer vegetation. The most striking feature of Trigodon is the spiked horn that rises from the top of the skull. This feature may have been purely for display, although it might have also been a weapon used against rival Trigodon in dominance contests.
- Novos achados de cetaceos longirrostros no Neogeno do Acre, Brasil. Boletim do Museu Paraense Emilio Goeldi. - Ciencias da Terra 2:59-64. - J. B. Villanueva, C. Muizon & J. P. Souza Filho - 1990.