Trigodon

Trigodon is an extinct genus of the family Toxodontidae, a large bodied notoungulate which inhabited South America during the Late Miocene to Early Pliocene (Mayoan to Montehermosan in the SALMA classification), living from 11.61—4.0 Ma and existed for approximately 7.61 million years. The type species is T. gaudryi.[1]

Trigodon
Temporal range: Late Miocene-Pliocene (Mayoan-Montehermosan)
~11.608–4.0 Ma
Restoration by Robert Bruce Horsfall
Scientific classification
Kingdom:
Animalia
Phylum:
Chordata
Class:
Mammalia
Order:
†Notoungulata
Family:
†Toxodontidae
Subfamily:
†Haplodontheriinae
Genus:
†Trigodon

Ameghino, 1887
Species:
†T. gaudryi
Binomial name
†Trigodon gaudryi

It bore a superficial resemblance to a rhinoceros, in that it had a horn on its forehead.[2]

Fossil distribution
  • Monte Hermoso Formation, Argentina[1]
  • Solimões Formation, Acre Province, Brazil, eastern slope of Andes Mountains.[3]

References
  1. Trigodon at Fossilworks.org
  2. Long, Michael. "Trigodon (with image)" (web). The Natural History Museum. Retrieved 2007-01-15.
  3. J. B. Villanueva, C. Muizon, and J. P. Souza Filho. 1990. Novos achados de cetaceos longirrostros no Neogeno do Acre, Brasil. Boletim do Museu Paraense Emilio Goeldi, Ciencias da Terra 2:59-64


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