Name: Tritemnodon ‭(‬Three cutting tooth‭)‬.
Phonetic: Tri-tem-no-don.
Named By: Matthew‭ ‬-‭ ‬1906.
Synonyms: Sinopa hians,‭ ‬Sinopa gracilis,‭ ‬Sinopa whitiae,‭ ‬Stypolophus hians,‭ ‬Stypolophus whitiae,‭ ‬Tritemnodon hians,‭ ‬Tritemnodon whitiae.
Classification: Chordata,‭ ‬Mammalia,‭ ‬Creodonta,‭ ‬Hyaenodontidae,‭ ‬Proviverrinae.
Species: T.‭ ‬agilis,‭ ‬T.‭ ‬strenuous.
Diet: Carnivore.
Size: Between‭ ‬100‭ ‬and‭ ‬160‭ ‬centimetres long.
Known locations: USA,‭ ‬Colorado‭ ‬-‭ ‬DeBeque Formation,‭ ‬Huerfano Formation,‭ ‬Utah‭ ‬-‭ ‬Green River Formation,‭ ‬Wyoming‭ ‬-‭ ‬Willwood Formation.
Time period: Ypresian of the Eocene.
Fossil representation: Remains of multiple individuals.

       One of the hyaenodonts,‭ ‬Tritemnodon means‭ ‘‬three cutting tooth‭’ ‬and is a reference to how the teeth were formed for greater slicing efficiency,‭ ‬something that hyaenodonts have a reputation for being able to with the greatest ease.‭ ‬The relatively small stature and gracile build of Tritemnodon means that these were most likely predators of smaller vertebrates such as rodent sized mammals.‭ ‬In terms of habitat,‭ ‬most of North America was still dominated by temperate forests that had not yet given way to the expansive grassy plains that would arrive by the Miocene.‭ ‬Therefore Tritemnodon probably lurked around the forest floor sniffing out scent trails left by the smaller animals that it would hunt for prey in a similar manner to how a fox would do today.‭ ‬The long legs and lightweight build of Tritemnodon would mean that an individual would be quite capable of running down even fairly fast prey.

Further reading
-‭ ‬Contributions from the Museum of‭ ‬Paleontology.‭ ‬-‭ ‬University of Michigan‭ ‬27‭(‬13‭)‬.‭ ‬-‭ ‬P.D.‭ ‬Gingerich‭ & ‬H.A.‭ ‬Deutsch‭ ‬-‭ ‬1989.
-‭ ‬Classification of Mammals Above the Species Level‭ ‬1-640.‭ ‬-‭ ‬M.‭ ‬C.‭ ‬McKenna and S.‭ ‬K.‭ ‬Bell‭ ‬-‭ ‬1997.


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