Name: Drassonax.
Phonetic: Drass-oh-nacks.
Named By: Galbreath‭ ‬-‭ ‬1953.‭
Classification: Chordata,‭ ‬Mammalia,‭ ‬Carniora,‭ ‬Caniformia,‭ ‬Amphicyonidae.
Species: D.‭ ‬harpagops (type).
Diet: Carnivore.
Size: Weight estimated around‭ ‬1.4‭ ‬kilograms.
Known locations: USA,‭ ‬Colorado‭ ‬-‭ ‬Cedar Creek.
Time period: Early Rupelian of the Oligocene.
Fossil representation: Single individual specimen.

       Although not a very well-known amphicyonid,‭ ‬Drassonax does help to reinforce the image of the earlier bear dogs being very small predators that were second to creodont mammals like Hyaenodon during the Oligocene.‭ ‬Ultimately however the creodonts did not adapt to changing climatic conditions which drove the development of new prey types,‭ ‬and with the arrival of newer larger bear dog forms such as Amphicyon,‭ ‬the bear dogs took over from the creodonts.‭
       Because of its small size,‭ ‬Drassonax would have been a hunter of other small animals as well as possibly a scavenger that fed upon the leftovers from the larger predators.‭ ‬These larger predators included the aforementioned creodonts as well as false sabre-toothed cats.‭ ‬Both of these types of predators would have been easily capable of killing a small amphicyonid like Drassonax.

Further reading
- A contribution to the Tertiary geology and paleontology of northeastern Colorado. - University of Kansas Paleontological Contributions Vertebrata 4:1-120. - E. C. Galbreath - 1953.


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