Harlan’s Ground sloth Jefferson’s Ground sloth Shasta Ground sloth
Paramylodon harlani Megalonyx jeffersoni Nothrotheriops shastensis
Inferred diet of P. harlani On the origin of the name Story of its discovery
Rare find in Arizona Thomas Jefferson’s report of Giant sloth
Extinct giant ground sloth (all 3) the clawed animal (p. 246-258) Sloth diet inferred from dung