Remains of two specimens were found in 1981 in the Haile limestone quarries. By 1994, they were suspected as possibly belonging to a new genus. Xenosmilus was a very robust cat. It somewhat resembled a Homotherium, but with the short, stout-legged features of Smilodon. Assembled, as shown.

Size: 7' (feet) Long
Origin: Alucha County, Florida
Period: Pleistocene (Irvingtonian)
Age:1.7 - 1.0 million years old