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 remains.
Body weight is more difficult to gauge because fat leaves no impression on the skeleton.
|Attribute||Paramylodon harlani||Nothrotheriops shastensis||Megalonyx jeffersoni|
|Estimated Body Weight
||varied estimates from 1,000 kg (2,205 lb) to 1,089 kg (2,400 lb)||estimated 250 kg (551 lb)
||estimated near 1,000 kg (2,205 lb)|
||3 m (9.8 ft) - bison sized||black bear-sized||3 m (9.8 ft) - bison sized, slightly smaller than Paramylodon|
Bargo et al. (2000)
McDonald (2004, 2006)
Bargo et al. (2006)