Name: Prosansanosmilus ‭(‬Before Sansanosmilus‭)‬.
Phonetic: Pro-san-san-o-smy-lus.
Named By: E.P.J.‭ ‬Heizmann,‭ ‬L.‭ ‬Ginsburg‭ & ‬C.‭ ‬Bulot‭ ‬-‭ ‬1980.
Classification: Chordata,‭ ‬Mammalia,‭ ‬Carnivora,‭ ‬Feliformia,‭ ‬Barbourofelidae.
Species: P.‭ ‬peregrinus‭ (‬type‭)‬,‭ ‬P.‭ ‬eggeri.
Diet: Carnivore.
Size: Unavailable.
Known locations: Europe.
Time period: Burdigalian of the Miocene.
Fossil representation: Several specimens.

       Prosansanosmilus is similar to another European genus of barbourofelid called Sansanosmilus,‭ ‬but is known from deposits that are dated to being a few million years older than the earliest currently known fossils of Sansanosmilus,‭ ‬hence the addition of‭ ‘‬Pro‭’ ‬to the genus name.‭ ‬The early appearance of Prosansanosmilus is also revealed in its more primitive form to later barbourofelids which includes upper canines that are not as well developed as later forms.‭ ‬Prosansanosmilus does still appear however to have been an ambush predator as indicated by its proportionately short legs,‭ ‬an adaptation that is great for sudden acceleration,‭ ‬but not so good for a high top speed over distance.‭ ‬The robust features of the skeleton also hint that it was a very physical predator that may have subdued its prey with physical strength before delivering a killing bite.‭ ‬Although exact size is unavailable,‭ ‬Prosansanosmilus is one of the smaller European genera of barbourofelid.

Further reading
- Prosansanosmilus peregrinus, ein neuer machairodontider Felide aus dem Miocän Deutschlands und Frankreichs. - Stuttgarter Beiträge zur Naturkunde, Ser. B. 58:1-27. - E.P.J. Heizmann, L. Ginsburg & C. Bulot - 1980.
- A new species of Prosansanosmilus: implications for the systematic relationships of the family Barbourofelidae new rank (Carnivora, Mammalia). - Zoological Journal of the Linnean Society 140:43-61. - M. Morlo, S. Peigné & D. Nagel - 2004.


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