Careful study of fossil bone or tooth anatomy yields much exact information about placement and strength of muscles, tendons, ligaments, nerves, and blood vessels. In rare cases, skin and hair impressions or actual skin or hair is preserved. Body weight is more difficult to gauge because fat leaves no impression on the skeleton.
|Estimated Body Weight||70 kg (156 lb)|
|Head/Body Length||170 cm (5.6 ft)|
|Height at Shoulder||85 cm (33 in)|
|Tail Length||92 cm (3 ft)|
Not enough fossils to be well studied.
A long and flexible back. (Turner & Anton 1997)
Claws were fully retractile in both M. inexpectatus and M. trumani(Van Valkenburgh et al 1990)
Throat bones (hyoid and epihyal) typical of modern non-roaring pumas and cheetahs were found with very complete American cheetah skeleton from
Hamilton Cave, West Virginia. (Van Valkenburgh et al 1990)
M. trumani appears highly modified for running, as is the modern cheetah (Martin et al 1977)
M. trumani is slightly smaller than M. inexpectatus.
Shaw & Cox (2006)
Turner & Anton (1997)
Van Valkenburgh et al (1990)